Home / 109,972.20-151,763.40-59,671.20

Finding the Fourth Proportional to 109,972.20, 151,763.40 and 59,671.20

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Solution

The fourth proportional to 109,972.20, 151,763.40 and 59,671.20 is: 82,347.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,972.20 : 151,763.40 = 59,671.20 : x
  2. Step 2: Convert to fraction form
    109,972.20/151,763.40 = 59,671.20/x
  3. Step 3: Cross multiply
    109,972.20x = 151,763.40 × 59,671.20
  4. Step 4: Simplify right side
    109,972.20x = 9,055,904,194.08
  5. Step 5: Solve for x
    x = 9,055,904,194.08/109,972.20
  6. Step 6: Final answer
    x = 82,347.21

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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.