Home / 136,945,141.34-188,874,100.67-120,389,868.45

Finding the Fourth Proportional to 136,945,141.34, 188,874,100.67 and 120,389,868.45

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Solution

The fourth proportional to 136,945,141.34, 188,874,100.67 and 120,389,868.45 is: 166,041,145.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945,141.34 : 188,874,100.67 = 120,389,868.45 : x
  2. Step 2: Convert to fraction form
    136,945,141.34/188,874,100.67 = 120,389,868.45/x
  3. Step 3: Cross multiply
    136,945,141.34x = 188,874,100.67 × 120,389,868.45
  4. Step 4: Simplify right side
    136,945,141.34x = 22,738,528,132,671,408
  5. Step 5: Solve for x
    x = 22,738,528,132,671,408/136,945,141.34
  6. Step 6: Final answer
    x = 166,041,145.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.