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Finding the Fourth Proportional to 123,876.73, 170,953.05 and 70,160.95

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Solution

The fourth proportional to 123,876.73, 170,953.05 and 70,160.95 is: 96,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,876.73 : 170,953.05 = 70,160.95 : x
  2. Step 2: Convert to fraction form
    123,876.73/170,953.05 = 70,160.95/x
  3. Step 3: Cross multiply
    123,876.73x = 170,953.05 × 70,160.95
  4. Step 4: Simplify right side
    123,876.73x = 11,994,228,393.40
  5. Step 5: Solve for x
    x = 11,994,228,393.40/123,876.73
  6. Step 6: Final answer
    x = 96,823.90

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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.