Home / 119,132.40-164,165.76-85,044.72

Finding the Fourth Proportional to 119,132.40, 164,165.76 and 85,044.72

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Solution

The fourth proportional to 119,132.40, 164,165.76 and 85,044.72 is: 117,192.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,132.40 : 164,165.76 = 85,044.72 : x
  2. Step 2: Convert to fraction form
    119,132.40/164,165.76 = 85,044.72/x
  3. Step 3: Cross multiply
    119,132.40x = 164,165.76 × 85,044.72
  4. Step 4: Simplify right side
    119,132.40x = 13,961,431,092.79
  5. Step 5: Solve for x
    x = 13,961,431,092.79/119,132.40
  6. Step 6: Final answer
    x = 117,192.56

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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.