Home / 120,585.12-166,377.36-70,265.76

Finding the Fourth Proportional to 120,585.12, 166,377.36 and 70,265.76

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Solution

The fourth proportional to 120,585.12, 166,377.36 and 70,265.76 is: 96,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,585.12 : 166,377.36 = 70,265.76 : x
  2. Step 2: Convert to fraction form
    120,585.12/166,377.36 = 70,265.76/x
  3. Step 3: Cross multiply
    120,585.12x = 166,377.36 × 70,265.76
  4. Step 4: Simplify right side
    120,585.12x = 11,690,631,647.19
  5. Step 5: Solve for x
    x = 11,690,631,647.19/120,585.12
  6. Step 6: Final answer
    x = 96,949.21

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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.