Home / 109,517.25-164,275.88-42,988.71

Finding the Fourth Proportional to 109,517.25, 164,275.88 and 42,988.71

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Solution

The fourth proportional to 109,517.25, 164,275.88 and 42,988.71 is: 64,483.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,517.25 : 164,275.88 = 42,988.71 : x
  2. Step 2: Convert to fraction form
    109,517.25/164,275.88 = 42,988.71/x
  3. Step 3: Cross multiply
    109,517.25x = 164,275.88 × 42,988.71
  4. Step 4: Simplify right side
    109,517.25x = 7,062,008,165.31
  5. Step 5: Solve for x
    x = 7,062,008,165.31/109,517.25
  6. Step 6: Final answer
    x = 64,483.07

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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.