Home / 145,377.16-218,065.12-38,760.90

Finding the Fourth Proportional to 145,377.16, 218,065.12 and 38,760.90

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Solution

The fourth proportional to 145,377.16, 218,065.12 and 38,760.90 is: 58,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,377.16 : 218,065.12 = 38,760.90 : x
  2. Step 2: Convert to fraction form
    145,377.16/218,065.12 = 38,760.90/x
  3. Step 3: Cross multiply
    145,377.16x = 218,065.12 × 38,760.90
  4. Step 4: Simplify right side
    145,377.16x = 8,452,400,309.81
  5. Step 5: Solve for x
    x = 8,452,400,309.81/145,377.16
  6. Step 6: Final answer
    x = 58,141.18

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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.