Home / 112,987.72-169,371.26-53,807.56

Finding the Fourth Proportional to 112,987.72, 169,371.26 and 53,807.56

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Solution

The fourth proportional to 112,987.72, 169,371.26 and 53,807.56 is: 80,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,987.72 : 169,371.26 = 53,807.56 : x
  2. Step 2: Convert to fraction form
    112,987.72/169,371.26 = 53,807.56/x
  3. Step 3: Cross multiply
    112,987.72x = 169,371.26 × 53,807.56
  4. Step 4: Simplify right side
    112,987.72x = 9,113,454,234.73
  5. Step 5: Solve for x
    x = 9,113,454,234.73/112,987.72
  6. Step 6: Final answer
    x = 80,658.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.