Home / 122,309.12-168,770.28-67,860.42

Finding the Fourth Proportional to 122,309.12, 168,770.28 and 67,860.42

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Solution

The fourth proportional to 122,309.12, 168,770.28 and 67,860.42 is: 93,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,309.12 : 168,770.28 = 67,860.42 : x
  2. Step 2: Convert to fraction form
    122,309.12/168,770.28 = 67,860.42/x
  3. Step 3: Cross multiply
    122,309.12x = 168,770.28 × 67,860.42
  4. Step 4: Simplify right side
    122,309.12x = 11,452,822,084.32
  5. Step 5: Solve for x
    x = 11,452,822,084.32/122,309.12
  6. Step 6: Final answer
    x = 93,638.33

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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.