Home / 103,700.30-155,449.32-56,272.52

Finding the Fourth Proportional to 103,700.30, 155,449.32 and 56,272.52

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Solution

The fourth proportional to 103,700.30, 155,449.32 and 56,272.52 is: 84,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,700.30 : 155,449.32 = 56,272.52 : x
  2. Step 2: Convert to fraction form
    103,700.30/155,449.32 = 56,272.52/x
  3. Step 3: Cross multiply
    103,700.30x = 155,449.32 × 56,272.52
  4. Step 4: Simplify right side
    103,700.30x = 8,747,524,968.69
  5. Step 5: Solve for x
    x = 8,747,524,968.69/103,700.30
  6. Step 6: Final answer
    x = 84,353.90

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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.