Home / 384,142.12-576,234.78-103,681.24

Finding the Fourth Proportional to 384,142.12, 576,234.78 and 103,681.24

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Solution

The fourth proportional to 384,142.12, 576,234.78 and 103,681.24 is: 155,527.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,142.12 : 576,234.78 = 103,681.24 : x
  2. Step 2: Convert to fraction form
    384,142.12/576,234.78 = 103,681.24/x
  3. Step 3: Cross multiply
    384,142.12x = 576,234.78 × 103,681.24
  4. Step 4: Simplify right side
    384,142.12x = 59,744,736,521.53
  5. Step 5: Solve for x
    x = 59,744,736,521.53/384,142.12
  6. Step 6: Final answer
    x = 155,527.69

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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.