Home / 107,178.48-147,912.17-59,430.78

Finding the Fourth Proportional to 107,178.48, 147,912.17 and 59,430.78

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Solution

The fourth proportional to 107,178.48, 147,912.17 and 59,430.78 is: 82,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,178.48 : 147,912.17 = 59,430.78 : x
  2. Step 2: Convert to fraction form
    107,178.48/147,912.17 = 59,430.78/x
  3. Step 3: Cross multiply
    107,178.48x = 147,912.17 × 59,430.78
  4. Step 4: Simplify right side
    107,178.48x = 8,790,535,337.44
  5. Step 5: Solve for x
    x = 8,790,535,337.44/107,178.48
  6. Step 6: Final answer
    x = 82,017.73

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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.