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Finding the Fourth Proportional to 112,281.70, 154,943.30 and 63,879.07

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Solution

The fourth proportional to 112,281.70, 154,943.30 and 63,879.07 is: 88,150.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,281.70 : 154,943.30 = 63,879.07 : x
  2. Step 2: Convert to fraction form
    112,281.70/154,943.30 = 63,879.07/x
  3. Step 3: Cross multiply
    112,281.70x = 154,943.30 × 63,879.07
  4. Step 4: Simplify right side
    112,281.70x = 9,897,633,906.73
  5. Step 5: Solve for x
    x = 9,897,633,906.73/112,281.70
  6. Step 6: Final answer
    x = 88,150.02

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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.