Home / 122,582.13-169,211.07-77,251.23

Finding the Fourth Proportional to 122,582.13, 169,211.07 and 77,251.23

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Solution

The fourth proportional to 122,582.13, 169,211.07 and 77,251.23 is: 106,636.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,582.13 : 169,211.07 = 77,251.23 : x
  2. Step 2: Convert to fraction form
    122,582.13/169,211.07 = 77,251.23/x
  3. Step 3: Cross multiply
    122,582.13x = 169,211.07 × 77,251.23
  4. Step 4: Simplify right side
    122,582.13x = 13,071,763,287.12
  5. Step 5: Solve for x
    x = 13,071,763,287.12/122,582.13
  6. Step 6: Final answer
    x = 106,636.78

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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.