Home / 74,157.39-102,337.19-40,165.61

Finding the Fourth Proportional to 74,157.39, 102,337.19 and 40,165.61

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Solution

The fourth proportional to 74,157.39, 102,337.19 and 40,165.61 is: 55,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,157.39 : 102,337.19 = 40,165.61 : x
  2. Step 2: Convert to fraction form
    74,157.39/102,337.19 = 40,165.61/x
  3. Step 3: Cross multiply
    74,157.39x = 102,337.19 × 40,165.61
  4. Step 4: Simplify right side
    74,157.39x = 4,110,435,100.14
  5. Step 5: Solve for x
    x = 4,110,435,100.14/74,157.39
  6. Step 6: Final answer
    x = 55,428.53

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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.