Home / 109,046.76-163,503.16-42,409.22

Finding the Fourth Proportional to 109,046.76, 163,503.16 and 42,409.22

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Solution

The fourth proportional to 109,046.76, 163,503.16 and 42,409.22 is: 63,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,046.76 : 163,503.16 = 42,409.22 : x
  2. Step 2: Convert to fraction form
    109,046.76/163,503.16 = 42,409.22/x
  3. Step 3: Cross multiply
    109,046.76x = 163,503.16 × 42,409.22
  4. Step 4: Simplify right side
    109,046.76x = 6,934,041,479.30
  5. Step 5: Solve for x
    x = 6,934,041,479.30/109,046.76
  6. Step 6: Final answer
    x = 63,587.78

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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.