Home / 140,160.92-193,444.22-89,120.45

Finding the Fourth Proportional to 140,160.92, 193,444.22 and 89,120.45

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Solution

The fourth proportional to 140,160.92, 193,444.22 and 89,120.45 is: 123,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,160.92 : 193,444.22 = 89,120.45 : x
  2. Step 2: Convert to fraction form
    140,160.92/193,444.22 = 89,120.45/x
  3. Step 3: Cross multiply
    140,160.92x = 193,444.22 × 89,120.45
  4. Step 4: Simplify right side
    140,160.92x = 17,239,835,191.88
  5. Step 5: Solve for x
    x = 17,239,835,191.88/140,160.92
  6. Step 6: Final answer
    x = 123,000.30

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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.