Home / 124,737.15-172,193.91-79,477.19

Finding the Fourth Proportional to 124,737.15, 172,193.91 and 79,477.19

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Solution

The fourth proportional to 124,737.15, 172,193.91 and 79,477.19 is: 109,714.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,737.15 : 172,193.91 = 79,477.19 : x
  2. Step 2: Convert to fraction form
    124,737.15/172,193.91 = 79,477.19/x
  3. Step 3: Cross multiply
    124,737.15x = 172,193.91 × 79,477.19
  4. Step 4: Simplify right side
    124,737.15x = 13,685,488,101.91
  5. Step 5: Solve for x
    x = 13,685,488,101.91/124,737.15
  6. Step 6: Final answer
    x = 109,714.61

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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.