Home / 121,859.03-168,158.48-67,407.95

Finding the Fourth Proportional to 121,859.03, 168,158.48 and 67,407.95

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Solution

The fourth proportional to 121,859.03, 168,158.48 and 67,407.95 is: 93,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,859.03 : 168,158.48 = 67,407.95 : x
  2. Step 2: Convert to fraction form
    121,859.03/168,158.48 = 67,407.95/x
  3. Step 3: Cross multiply
    121,859.03x = 168,158.48 × 67,407.95
  4. Step 4: Simplify right side
    121,859.03x = 11,335,217,234.08
  5. Step 5: Solve for x
    x = 11,335,217,234.08/121,859.03
  6. Step 6: Final answer
    x = 93,019.10

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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.