Home / 101,622.10-152,433.15-87,625.30

Finding the Fourth Proportional to 101,622.10, 152,433.15 and 87,625.30

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Solution

The fourth proportional to 101,622.10, 152,433.15 and 87,625.30 is: 131,437.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,622.10 : 152,433.15 = 87,625.30 : x
  2. Step 2: Convert to fraction form
    101,622.10/152,433.15 = 87,625.30/x
  3. Step 3: Cross multiply
    101,622.10x = 152,433.15 × 87,625.30
  4. Step 4: Simplify right side
    101,622.10x = 13,357,000,498.70
  5. Step 5: Solve for x
    x = 13,357,000,498.70/101,622.10
  6. Step 6: Final answer
    x = 131,437.95

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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.