Home / 125,085.60-172,619.15-74,101.23

Finding the Fourth Proportional to 125,085.60, 172,619.15 and 74,101.23

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Solution

The fourth proportional to 125,085.60, 172,619.15 and 74,101.23 is: 102,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,085.60 : 172,619.15 = 74,101.23 : x
  2. Step 2: Convert to fraction form
    125,085.60/172,619.15 = 74,101.23/x
  3. Step 3: Cross multiply
    125,085.60x = 172,619.15 × 74,101.23
  4. Step 4: Simplify right side
    125,085.60x = 12,791,290,966.05
  5. Step 5: Solve for x
    x = 12,791,290,966.05/125,085.60
  6. Step 6: Final answer
    x = 102,260.30

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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.