Home / 123,824.14-170,878.06-72,838.95

Finding the Fourth Proportional to 123,824.14, 170,878.06 and 72,838.95

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Solution

The fourth proportional to 123,824.14, 170,878.06 and 72,838.95 is: 100,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,824.14 : 170,878.06 = 72,838.95 : x
  2. Step 2: Convert to fraction form
    123,824.14/170,878.06 = 72,838.95/x
  3. Step 3: Cross multiply
    123,824.14x = 170,878.06 × 72,838.95
  4. Step 4: Simplify right side
    123,824.14x = 12,446,577,508.97
  5. Step 5: Solve for x
    x = 12,446,577,508.97/123,824.14
  6. Step 6: Final answer
    x = 100,518.18

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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.