Home / 103,607.12-155,204.91-79,832.18

Finding the Fourth Proportional to 103,607.12, 155,204.91 and 79,832.18

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Solution

The fourth proportional to 103,607.12, 155,204.91 and 79,832.18 is: 119,589.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,607.12 : 155,204.91 = 79,832.18 : x
  2. Step 2: Convert to fraction form
    103,607.12/155,204.91 = 79,832.18/x
  3. Step 3: Cross multiply
    103,607.12x = 155,204.91 × 79,832.18
  4. Step 4: Simplify right side
    103,607.12x = 12,390,345,535.98
  5. Step 5: Solve for x
    x = 12,390,345,535.98/103,607.12
  6. Step 6: Final answer
    x = 119,589.72

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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.