Home / 120,569.04-166,387.57-66,117.96

Finding the Fourth Proportional to 120,569.04, 166,387.57 and 66,117.96

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Solution

The fourth proportional to 120,569.04, 166,387.57 and 66,117.96 is: 91,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,569.04 : 166,387.57 = 66,117.96 : x
  2. Step 2: Convert to fraction form
    120,569.04/166,387.57 = 66,117.96/x
  3. Step 3: Cross multiply
    120,569.04x = 166,387.57 × 66,117.96
  4. Step 4: Simplify right side
    120,569.04x = 11,001,207,351.40
  5. Step 5: Solve for x
    x = 11,001,207,351.40/120,569.04
  6. Step 6: Final answer
    x = 91,244.05

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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.