Home / 123,841.60-170,891.94-72,856.36

Finding the Fourth Proportional to 123,841.60, 170,891.94 and 72,856.36

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Solution

The fourth proportional to 123,841.60, 170,891.94 and 72,856.36 is: 100,536.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,841.60 : 170,891.94 = 72,856.36 : x
  2. Step 2: Convert to fraction form
    123,841.60/170,891.94 = 72,856.36/x
  3. Step 3: Cross multiply
    123,841.60x = 170,891.94 × 72,856.36
  4. Step 4: Simplify right side
    123,841.60x = 12,450,564,701.74
  5. Step 5: Solve for x
    x = 12,450,564,701.74/123,841.60
  6. Step 6: Final answer
    x = 100,536.21

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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.