Home / 146,711.30-220,139.85-57,967.70

Finding the Fourth Proportional to 146,711.30, 220,139.85 and 57,967.70

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Solution

The fourth proportional to 146,711.30, 220,139.85 and 57,967.70 is: 86,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,711.30 : 220,139.85 = 57,967.70 : x
  2. Step 2: Convert to fraction form
    146,711.30/220,139.85 = 57,967.70/x
  3. Step 3: Cross multiply
    146,711.30x = 220,139.85 × 57,967.70
  4. Step 4: Simplify right side
    146,711.30x = 12,761,000,782.85
  5. Step 5: Solve for x
    x = 12,761,000,782.85/146,711.30
  6. Step 6: Final answer
    x = 86,980.35

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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.