Home / 112,849.59-155,731.35-61,865.13

Finding the Fourth Proportional to 112,849.59, 155,731.35 and 61,865.13

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Solution

The fourth proportional to 112,849.59, 155,731.35 and 61,865.13 is: 85,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,849.59 : 155,731.35 = 61,865.13 : x
  2. Step 2: Convert to fraction form
    112,849.59/155,731.35 = 61,865.13/x
  3. Step 3: Cross multiply
    112,849.59x = 155,731.35 × 61,865.13
  4. Step 4: Simplify right side
    112,849.59x = 9,634,340,212.83
  5. Step 5: Solve for x
    x = 9,634,340,212.83/112,849.59
  6. Step 6: Final answer
    x = 85,373.29

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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.