Home / 157,531.15-236,235.30-68,724.10

Finding the Fourth Proportional to 157,531.15, 236,235.30 and 68,724.10

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Solution

The fourth proportional to 157,531.15, 236,235.30 and 68,724.10 is: 103,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,531.15 : 236,235.30 = 68,724.10 : x
  2. Step 2: Convert to fraction form
    157,531.15/236,235.30 = 68,724.10/x
  3. Step 3: Cross multiply
    157,531.15x = 236,235.30 × 68,724.10
  4. Step 4: Simplify right side
    157,531.15x = 16,235,058,380.73
  5. Step 5: Solve for x
    x = 16,235,058,380.73/157,531.15
  6. Step 6: Final answer
    x = 103,059.35

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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.