Home / 122,729.07-169,368.42-71,746.16

Finding the Fourth Proportional to 122,729.07, 169,368.42 and 71,746.16

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Solution

The fourth proportional to 122,729.07, 169,368.42 and 71,746.16 is: 99,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,729.07 : 169,368.42 = 71,746.16 : x
  2. Step 2: Convert to fraction form
    122,729.07/169,368.42 = 71,746.16/x
  3. Step 3: Cross multiply
    122,729.07x = 169,368.42 × 71,746.16
  4. Step 4: Simplify right side
    122,729.07x = 12,151,532,778.90
  5. Step 5: Solve for x
    x = 12,151,532,778.90/122,729.07
  6. Step 6: Final answer
    x = 99,011.04

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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.