Home / 109,862.90-164,535.15-74,611.70

Finding the Fourth Proportional to 109,862.90, 164,535.15 and 74,611.70

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Solution

The fourth proportional to 109,862.90, 164,535.15 and 74,611.70 is: 111,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,862.90 : 164,535.15 = 74,611.70 : x
  2. Step 2: Convert to fraction form
    109,862.90/164,535.15 = 74,611.70/x
  3. Step 3: Cross multiply
    109,862.90x = 164,535.15 × 74,611.70
  4. Step 4: Simplify right side
    109,862.90x = 12,276,247,251.26
  5. Step 5: Solve for x
    x = 12,276,247,251.26/109,862.90
  6. Step 6: Final answer
    x = 111,741.52

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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.