Home / 109,134.18-163,685.07-30,240.18

Finding the Fourth Proportional to 109,134.18, 163,685.07 and 30,240.18

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Solution

The fourth proportional to 109,134.18, 163,685.07 and 30,240.18 is: 45,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,134.18 : 163,685.07 = 30,240.18 : x
  2. Step 2: Convert to fraction form
    109,134.18/163,685.07 = 30,240.18/x
  3. Step 3: Cross multiply
    109,134.18x = 163,685.07 × 30,240.18
  4. Step 4: Simplify right side
    109,134.18x = 4,949,865,980.11
  5. Step 5: Solve for x
    x = 4,949,865,980.11/109,134.18
  6. Step 6: Final answer
    x = 45,355.78

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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.