Home / 122,837.13-169,455.11-75,007.71

Finding the Fourth Proportional to 122,837.13, 169,455.11 and 75,007.71

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Solution

The fourth proportional to 122,837.13, 169,455.11 and 75,007.71 is: 103,473.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,837.13 : 169,455.11 = 75,007.71 : x
  2. Step 2: Convert to fraction form
    122,837.13/169,455.11 = 75,007.71/x
  3. Step 3: Cross multiply
    122,837.13x = 169,455.11 × 75,007.71
  4. Step 4: Simplify right side
    122,837.13x = 12,710,439,373.86
  5. Step 5: Solve for x
    x = 12,710,439,373.86/122,837.13
  6. Step 6: Final answer
    x = 103,473.92

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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.