Home / 112,701.66-155,530.05-61,713.54

Finding the Fourth Proportional to 112,701.66, 155,530.05 and 61,713.54

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Solution

The fourth proportional to 112,701.66, 155,530.05 and 61,713.54 is: 85,165.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,701.66 : 155,530.05 = 61,713.54 : x
  2. Step 2: Convert to fraction form
    112,701.66/155,530.05 = 61,713.54/x
  3. Step 3: Cross multiply
    112,701.66x = 155,530.05 × 61,713.54
  4. Step 4: Simplify right side
    112,701.66x = 9,598,309,961.88
  5. Step 5: Solve for x
    x = 9,598,309,961.88/112,701.66
  6. Step 6: Final answer
    x = 85,165.65

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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.