Home / 112,818.53-155,691.57-61,827.87

Finding the Fourth Proportional to 112,818.53, 155,691.57 and 61,827.87

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Solution

The fourth proportional to 112,818.53, 155,691.57 and 61,827.87 is: 85,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,818.53 : 155,691.57 = 61,827.87 : x
  2. Step 2: Convert to fraction form
    112,818.53/155,691.57 = 61,827.87/x
  3. Step 3: Cross multiply
    112,818.53x = 155,691.57 × 61,827.87
  4. Step 4: Simplify right side
    112,818.53x = 9,626,077,798.07
  5. Step 5: Solve for x
    x = 9,626,077,798.07/112,818.53
  6. Step 6: Final answer
    x = 85,323.55

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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.