Home / 147,770.33-203,928.08-87,392.72

Finding the Fourth Proportional to 147,770.33, 203,928.08 and 87,392.72

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Solution

The fourth proportional to 147,770.33, 203,928.08 and 87,392.72 is: 120,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,770.33 : 203,928.08 = 87,392.72 : x
  2. Step 2: Convert to fraction form
    147,770.33/203,928.08 = 87,392.72/x
  3. Step 3: Cross multiply
    147,770.33x = 203,928.08 × 87,392.72
  4. Step 4: Simplify right side
    147,770.33x = 17,821,830,160.02
  5. Step 5: Solve for x
    x = 17,821,830,160.02/147,770.33
  6. Step 6: Final answer
    x = 120,604.93

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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.