Home / 136,901.09-188,911.19-76,463.34

Finding the Fourth Proportional to 136,901.09, 188,911.19 and 76,463.34

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Solution

The fourth proportional to 136,901.09, 188,911.19 and 76,463.34 is: 105,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,901.09 : 188,911.19 = 76,463.34 : x
  2. Step 2: Convert to fraction form
    136,901.09/188,911.19 = 76,463.34/x
  3. Step 3: Cross multiply
    136,901.09x = 188,911.19 × 76,463.34
  4. Step 4: Simplify right side
    136,901.09x = 14,444,780,168.46
  5. Step 5: Solve for x
    x = 14,444,780,168.46/136,901.09
  6. Step 6: Final answer
    x = 105,512.53

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1.5x scale

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.