Home / 112,371.04-155,034.84-74,149.57

Finding the Fourth Proportional to 112,371.04, 155,034.84 and 74,149.57

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Solution

The fourth proportional to 112,371.04, 155,034.84 and 74,149.57 is: 102,301.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,371.04 : 155,034.84 = 74,149.57 : x
  2. Step 2: Convert to fraction form
    112,371.04/155,034.84 = 74,149.57/x
  3. Step 3: Cross multiply
    112,371.04x = 155,034.84 × 74,149.57
  4. Step 4: Simplify right side
    112,371.04x = 11,495,766,721.02
  5. Step 5: Solve for x
    x = 11,495,766,721.02/112,371.04
  6. Step 6: Final answer
    x = 102,301.86

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1.5x scale

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.