Home / 122,997.47-169,727.96-72,686.75

Finding the Fourth Proportional to 122,997.47, 169,727.96 and 72,686.75

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Solution

The fourth proportional to 122,997.47, 169,727.96 and 72,686.75 is: 100,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,997.47 : 169,727.96 = 72,686.75 : x
  2. Step 2: Convert to fraction form
    122,997.47/169,727.96 = 72,686.75/x
  3. Step 3: Cross multiply
    122,997.47x = 169,727.96 × 72,686.75
  4. Step 4: Simplify right side
    122,997.47x = 12,336,973,433.10
  5. Step 5: Solve for x
    x = 12,336,973,433.10/122,997.47
  6. Step 6: Final answer
    x = 100,302.66

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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.