Home / 120,238.92-165,995.88-90,013.32

Finding the Fourth Proportional to 120,238.92, 165,995.88 and 90,013.32

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Solution

The fourth proportional to 120,238.92, 165,995.88 and 90,013.32 is: 124,267.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,238.92 : 165,995.88 = 90,013.32 : x
  2. Step 2: Convert to fraction form
    120,238.92/165,995.88 = 90,013.32/x
  3. Step 3: Cross multiply
    120,238.92x = 165,995.88 × 90,013.32
  4. Step 4: Simplify right side
    120,238.92x = 14,941,840,265.12
  5. Step 5: Solve for x
    x = 14,941,840,265.12/120,238.92
  6. Step 6: Final answer
    x = 124,267.92

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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.