Home / 120,332.04-165,957.84-90,189.24

Finding the Fourth Proportional to 120,332.04, 165,957.84 and 90,189.24

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Solution

The fourth proportional to 120,332.04, 165,957.84 and 90,189.24 is: 124,385.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,332.04 : 165,957.84 = 90,189.24 : x
  2. Step 2: Convert to fraction form
    120,332.04/165,957.84 = 90,189.24/x
  3. Step 3: Cross multiply
    120,332.04x = 165,957.84 × 90,189.24
  4. Step 4: Simplify right side
    120,332.04x = 14,967,611,461.64
  5. Step 5: Solve for x
    x = 14,967,611,461.64/120,332.04
  6. Step 6: Final answer
    x = 124,385.92

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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.