Home / 112,422.92-155,138.73-61,434.83

Finding the Fourth Proportional to 112,422.92, 155,138.73 and 61,434.83

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Solution

The fourth proportional to 112,422.92, 155,138.73 and 61,434.83 is: 84,777.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,422.92 : 155,138.73 = 61,434.83 : x
  2. Step 2: Convert to fraction form
    112,422.92/155,138.73 = 61,434.83/x
  3. Step 3: Cross multiply
    112,422.92x = 155,138.73 × 61,434.83
  4. Step 4: Simplify right side
    112,422.92x = 9,530,920,728.27
  5. Step 5: Solve for x
    x = 9,530,920,728.27/112,422.92
  6. Step 6: Final answer
    x = 84,777.38

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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.