Home / 122,638.27-169,244.65-74,249.07

Finding the Fourth Proportional to 122,638.27, 169,244.65 and 74,249.07

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Solution

The fourth proportional to 122,638.27, 169,244.65 and 74,249.07 is: 102,466.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,638.27 : 169,244.65 = 74,249.07 : x
  2. Step 2: Convert to fraction form
    122,638.27/169,244.65 = 74,249.07/x
  3. Step 3: Cross multiply
    122,638.27x = 169,244.65 × 74,249.07
  4. Step 4: Simplify right side
    122,638.27x = 12,566,257,864.98
  5. Step 5: Solve for x
    x = 12,566,257,864.98/122,638.27
  6. Step 6: Final answer
    x = 102,466.04

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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.