Home / 142,126.85-213,153.15-42,260.15

Finding the Fourth Proportional to 142,126.85, 213,153.15 and 42,260.15

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Solution

The fourth proportional to 142,126.85, 213,153.15 and 42,260.15 is: 63,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,126.85 : 213,153.15 = 42,260.15 : x
  2. Step 2: Convert to fraction form
    142,126.85/213,153.15 = 42,260.15/x
  3. Step 3: Cross multiply
    142,126.85x = 213,153.15 × 42,260.15
  4. Step 4: Simplify right side
    142,126.85x = 9,007,884,091.97
  5. Step 5: Solve for x
    x = 9,007,884,091.97/142,126.85
  6. Step 6: Final answer
    x = 63,379.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.