Home / 112,439.52-155,162.16-62,137.44

Finding the Fourth Proportional to 112,439.52, 155,162.16 and 62,137.44

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Solution

The fourth proportional to 112,439.52, 155,162.16 and 62,137.44 is: 85,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,439.52 : 155,162.16 = 62,137.44 : x
  2. Step 2: Convert to fraction form
    112,439.52/155,162.16 = 62,137.44/x
  3. Step 3: Cross multiply
    112,439.52x = 155,162.16 × 62,137.44
  4. Step 4: Simplify right side
    112,439.52x = 9,641,379,407.27
  5. Step 5: Solve for x
    x = 9,641,379,407.27/112,439.52
  6. Step 6: Final answer
    x = 85,747.25

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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.