Home / 122,625.48-169,217.70-71,642.94

Finding the Fourth Proportional to 122,625.48, 169,217.70 and 71,642.94

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Solution

The fourth proportional to 122,625.48, 169,217.70 and 71,642.94 is: 98,864.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,625.48 : 169,217.70 = 71,642.94 : x
  2. Step 2: Convert to fraction form
    122,625.48/169,217.70 = 71,642.94/x
  3. Step 3: Cross multiply
    122,625.48x = 169,217.70 × 71,642.94
  4. Step 4: Simplify right side
    122,625.48x = 12,123,253,528.04
  5. Step 5: Solve for x
    x = 12,123,253,528.04/122,625.48
  6. Step 6: Final answer
    x = 98,864.07

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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.