Home / 125,044.02-172,565.10-68,455.80

Finding the Fourth Proportional to 125,044.02, 172,565.10 and 68,455.80

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Solution

The fourth proportional to 125,044.02, 172,565.10 and 68,455.80 is: 94,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,044.02 : 172,565.10 = 68,455.80 : x
  2. Step 2: Convert to fraction form
    125,044.02/172,565.10 = 68,455.80/x
  3. Step 3: Cross multiply
    125,044.02x = 172,565.10 × 68,455.80
  4. Step 4: Simplify right side
    125,044.02x = 11,813,081,972.58
  5. Step 5: Solve for x
    x = 11,813,081,972.58/125,044.02
  6. Step 6: Final answer
    x = 94,471.39

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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.