Home / 74,044.38-102,156.39-42,190.86

Finding the Fourth Proportional to 74,044.38, 102,156.39 and 42,190.86

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Solution

The fourth proportional to 74,044.38, 102,156.39 and 42,190.86 is: 58,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,044.38 : 102,156.39 = 42,190.86 : x
  2. Step 2: Convert to fraction form
    74,044.38/102,156.39 = 42,190.86/x
  3. Step 3: Cross multiply
    74,044.38x = 102,156.39 × 42,190.86
  4. Step 4: Simplify right side
    74,044.38x = 4,310,065,948.60
  5. Step 5: Solve for x
    x = 4,310,065,948.60/74,044.38
  6. Step 6: Final answer
    x = 58,209.22

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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.