Home / 122,752.32-169,508.96-77,510.40

Finding the Fourth Proportional to 122,752.32, 169,508.96 and 77,510.40

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Solution

The fourth proportional to 122,752.32, 169,508.96 and 77,510.40 is: 107,034.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,752.32 : 169,508.96 = 77,510.40 : x
  2. Step 2: Convert to fraction form
    122,752.32/169,508.96 = 77,510.40/x
  3. Step 3: Cross multiply
    122,752.32x = 169,508.96 × 77,510.40
  4. Step 4: Simplify right side
    122,752.32x = 13,138,707,293.18
  5. Step 5: Solve for x
    x = 13,138,707,293.18/122,752.32
  6. Step 6: Final answer
    x = 107,034.29

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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.