Home / 120,265.52-165,856.76-103,264.43

Finding the Fourth Proportional to 120,265.52, 165,856.76 and 103,264.43

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Solution

The fourth proportional to 120,265.52, 165,856.76 and 103,264.43 is: 142,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,265.52 : 165,856.76 = 103,264.43 : x
  2. Step 2: Convert to fraction form
    120,265.52/165,856.76 = 103,264.43/x
  3. Step 3: Cross multiply
    120,265.52x = 165,856.76 × 103,264.43
  4. Step 4: Simplify right side
    120,265.52x = 17,127,102,437.44
  5. Step 5: Solve for x
    x = 17,127,102,437.44/120,265.52
  6. Step 6: Final answer
    x = 142,410.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.