Home / 134,738.62-185,931.12-74,309.92

Finding the Fourth Proportional to 134,738.62, 185,931.12 and 74,309.92

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Solution

The fourth proportional to 134,738.62, 185,931.12 and 74,309.92 is: 102,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,738.62 : 185,931.12 = 74,309.92 : x
  2. Step 2: Convert to fraction form
    134,738.62/185,931.12 = 74,309.92/x
  3. Step 3: Cross multiply
    134,738.62x = 185,931.12 × 74,309.92
  4. Step 4: Simplify right side
    134,738.62x = 13,816,526,652.71
  5. Step 5: Solve for x
    x = 13,816,526,652.71/134,738.62
  6. Step 6: Final answer
    x = 102,543.18

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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.