Home / 112,701.75-155,530.32-61,713.66

Finding the Fourth Proportional to 112,701.75, 155,530.32 and 61,713.66

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Solution

The fourth proportional to 112,701.75, 155,530.32 and 61,713.66 is: 85,165.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,701.75 : 155,530.32 = 61,713.66 : x
  2. Step 2: Convert to fraction form
    112,701.75/155,530.32 = 61,713.66/x
  3. Step 3: Cross multiply
    112,701.75x = 155,530.32 × 61,713.66
  4. Step 4: Simplify right side
    112,701.75x = 9,598,345,288.17
  5. Step 5: Solve for x
    x = 9,598,345,288.17/112,701.75
  6. Step 6: Final answer
    x = 85,165.89

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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.