Home / 106,812.30-160,218.45-89,445.90

Finding the Fourth Proportional to 106,812.30, 160,218.45 and 89,445.90

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Solution

The fourth proportional to 106,812.30, 160,218.45 and 89,445.90 is: 134,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,812.30 : 160,218.45 = 89,445.90 : x
  2. Step 2: Convert to fraction form
    106,812.30/160,218.45 = 89,445.90/x
  3. Step 3: Cross multiply
    106,812.30x = 160,218.45 × 89,445.90
  4. Step 4: Simplify right side
    106,812.30x = 14,330,883,456.86
  5. Step 5: Solve for x
    x = 14,330,883,456.86/106,812.30
  6. Step 6: Final answer
    x = 134,168.85

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1.5x scale

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.