Home / 112,651.44-155,445.24-89,739.61

Finding the Fourth Proportional to 112,651.44, 155,445.24 and 89,739.61

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Solution

The fourth proportional to 112,651.44, 155,445.24 and 89,739.61 is: 123,829.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,651.44 : 155,445.24 = 89,739.61 : x
  2. Step 2: Convert to fraction form
    112,651.44/155,445.24 = 89,739.61/x
  3. Step 3: Cross multiply
    112,651.44x = 155,445.24 × 89,739.61
  4. Step 4: Simplify right side
    112,651.44x = 13,949,596,036.25
  5. Step 5: Solve for x
    x = 13,949,596,036.25/112,651.44
  6. Step 6: Final answer
    x = 123,829.72

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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.