Home / 122,281.85-168,677.30-76,887.90

Finding the Fourth Proportional to 122,281.85, 168,677.30 and 76,887.90

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Solution

The fourth proportional to 122,281.85, 168,677.30 and 76,887.90 is: 106,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,281.85 : 168,677.30 = 76,887.90 : x
  2. Step 2: Convert to fraction form
    122,281.85/168,677.30 = 76,887.90/x
  3. Step 3: Cross multiply
    122,281.85x = 168,677.30 × 76,887.90
  4. Step 4: Simplify right side
    122,281.85x = 12,969,243,566.89
  5. Step 5: Solve for x
    x = 12,969,243,566.89/122,281.85
  6. Step 6: Final answer
    x = 106,060.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.