Home / 109,060.20-163,590.30-99,218.70

Finding the Fourth Proportional to 109,060.20, 163,590.30 and 99,218.70

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Solution

The fourth proportional to 109,060.20, 163,590.30 and 99,218.70 is: 148,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,060.20 : 163,590.30 = 99,218.70 : x
  2. Step 2: Convert to fraction form
    109,060.20/163,590.30 = 99,218.70/x
  3. Step 3: Cross multiply
    109,060.20x = 163,590.30 × 99,218.70
  4. Step 4: Simplify right side
    109,060.20x = 16,231,216,898.61
  5. Step 5: Solve for x
    x = 16,231,216,898.61/109,060.20
  6. Step 6: Final answer
    x = 148,828.05

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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.