Home / 161,443.85-242,165.97-77,184.20

Finding the Fourth Proportional to 161,443.85, 242,165.97 and 77,184.20

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Solution

The fourth proportional to 161,443.85, 242,165.97 and 77,184.20 is: 115,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,443.85 : 242,165.97 = 77,184.20 : x
  2. Step 2: Convert to fraction form
    161,443.85/242,165.97 = 77,184.20/x
  3. Step 3: Cross multiply
    161,443.85x = 242,165.97 × 77,184.20
  4. Step 4: Simplify right side
    161,443.85x = 18,691,386,661.67
  5. Step 5: Solve for x
    x = 18,691,386,661.67/161,443.85
  6. Step 6: Final answer
    x = 115,776.39

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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.