Home / 74,151.22-102,328.17-40,158.92

Finding the Fourth Proportional to 74,151.22, 102,328.17 and 40,158.92

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Solution

The fourth proportional to 74,151.22, 102,328.17 and 40,158.92 is: 55,419.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,151.22 : 102,328.17 = 40,158.92 : x
  2. Step 2: Convert to fraction form
    74,151.22/102,328.17 = 40,158.92/x
  3. Step 3: Cross multiply
    74,151.22x = 102,328.17 × 40,158.92
  4. Step 4: Simplify right side
    74,151.22x = 4,109,388,792.78
  5. Step 5: Solve for x
    x = 4,109,388,792.78/74,151.22
  6. Step 6: Final answer
    x = 55,419.03

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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.