Home / 109,001.76-163,439.10-42,363.96

Finding the Fourth Proportional to 109,001.76, 163,439.10 and 42,363.96

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Solution

The fourth proportional to 109,001.76, 163,439.10 and 42,363.96 is: 63,521.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,001.76 : 163,439.10 = 42,363.96 : x
  2. Step 2: Convert to fraction form
    109,001.76/163,439.10 = 42,363.96/x
  3. Step 3: Cross multiply
    109,001.76x = 163,439.10 × 42,363.96
  4. Step 4: Simplify right side
    109,001.76x = 6,923,927,494.84
  5. Step 5: Solve for x
    x = 6,923,927,494.84/109,001.76
  6. Step 6: Final answer
    x = 63,521.24

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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.