Home / 125,257.74-172,862.82-74,300.64

Finding the Fourth Proportional to 125,257.74, 172,862.82 and 74,300.64

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Solution

The fourth proportional to 125,257.74, 172,862.82 and 74,300.64 is: 102,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,257.74 : 172,862.82 = 74,300.64 : x
  2. Step 2: Convert to fraction form
    125,257.74/172,862.82 = 74,300.64/x
  3. Step 3: Cross multiply
    125,257.74x = 172,862.82 × 74,300.64
  4. Step 4: Simplify right side
    125,257.74x = 12,843,818,158.20
  5. Step 5: Solve for x
    x = 12,843,818,158.20/125,257.74
  6. Step 6: Final answer
    x = 102,539.12

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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.