Home / 175,609.54-242,139.16-129,735.57

Finding the Fourth Proportional to 175,609.54, 242,139.16 and 129,735.57

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Solution

The fourth proportional to 175,609.54, 242,139.16 and 129,735.57 is: 178,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,609.54 : 242,139.16 = 129,735.57 : x
  2. Step 2: Convert to fraction form
    175,609.54/242,139.16 = 129,735.57/x
  3. Step 3: Cross multiply
    175,609.54x = 242,139.16 × 129,735.57
  4. Step 4: Simplify right side
    175,609.54x = 31,414,061,941.92
  5. Step 5: Solve for x
    x = 31,414,061,941.92/175,609.54
  6. Step 6: Final answer
    x = 178,885.85

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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.