Home / 124,734.90-187,102.35-72,117.30

Finding the Fourth Proportional to 124,734.90, 187,102.35 and 72,117.30

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Solution

The fourth proportional to 124,734.90, 187,102.35 and 72,117.30 is: 108,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,734.90 : 187,102.35 = 72,117.30 : x
  2. Step 2: Convert to fraction form
    124,734.90/187,102.35 = 72,117.30/x
  3. Step 3: Cross multiply
    124,734.90x = 187,102.35 × 72,117.30
  4. Step 4: Simplify right side
    124,734.90x = 13,493,316,305.66
  5. Step 5: Solve for x
    x = 13,493,316,305.66/124,734.90
  6. Step 6: Final answer
    x = 108,175.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.