Home / 109,272.75-163,938.29-39,159.15

Finding the Fourth Proportional to 109,272.75, 163,938.29 and 39,159.15

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Solution

The fourth proportional to 109,272.75, 163,938.29 and 39,159.15 is: 58,749.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,272.75 : 163,938.29 = 39,159.15 : x
  2. Step 2: Convert to fraction form
    109,272.75/163,938.29 = 39,159.15/x
  3. Step 3: Cross multiply
    109,272.75x = 163,938.29 × 39,159.15
  4. Step 4: Simplify right side
    109,272.75x = 6,419,684,088.85
  5. Step 5: Solve for x
    x = 6,419,684,088.85/109,272.75
  6. Step 6: Final answer
    x = 58,749.18

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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.