Home / 104,560.12-156,752-45,351.20

Finding the Fourth Proportional to 104,560.12, 156,752 and 45,351.20

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Solution

The fourth proportional to 104,560.12, 156,752 and 45,351.20 is: 67,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,560.12 : 156,752 = 45,351.20 : x
  2. Step 2: Convert to fraction form
    104,560.12/156,752 = 45,351.20/x
  3. Step 3: Cross multiply
    104,560.12x = 156,752 × 45,351.20
  4. Step 4: Simplify right side
    104,560.12x = 7,108,891,302.40
  5. Step 5: Solve for x
    x = 7,108,891,302.40/104,560.12
  6. Step 6: Final answer
    x = 67,988.55

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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.