Home / 101,065.20-151,707.15-56,778.45

Finding the Fourth Proportional to 101,065.20, 151,707.15 and 56,778.45

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Solution

The fourth proportional to 101,065.20, 151,707.15 and 56,778.45 is: 85,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,065.20 : 151,707.15 = 56,778.45 : x
  2. Step 2: Convert to fraction form
    101,065.20/151,707.15 = 56,778.45/x
  3. Step 3: Cross multiply
    101,065.20x = 151,707.15 × 56,778.45
  4. Step 4: Simplify right side
    101,065.20x = 8,613,696,830.92
  5. Step 5: Solve for x
    x = 8,613,696,830.92/101,065.20
  6. Step 6: Final answer
    x = 85,229.11

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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.