Home / 85,034.10-127,551.15-74,666.10

Finding the Fourth Proportional to 85,034.10, 127,551.15 and 74,666.10

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Solution

The fourth proportional to 85,034.10, 127,551.15 and 74,666.10 is: 111,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,034.10 : 127,551.15 = 74,666.10 : x
  2. Step 2: Convert to fraction form
    85,034.10/127,551.15 = 74,666.10/x
  3. Step 3: Cross multiply
    85,034.10x = 127,551.15 × 74,666.10
  4. Step 4: Simplify right side
    85,034.10x = 9,523,746,921.02
  5. Step 5: Solve for x
    x = 9,523,746,921.02/85,034.10
  6. Step 6: Final answer
    x = 111,999.15

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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.