Home / 123,890.42-170,967.84-67,302.20

Finding the Fourth Proportional to 123,890.42, 170,967.84 and 67,302.20

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Solution

The fourth proportional to 123,890.42, 170,967.84 and 67,302.20 is: 92,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,890.42 : 170,967.84 = 67,302.20 : x
  2. Step 2: Convert to fraction form
    123,890.42/170,967.84 = 67,302.20/x
  3. Step 3: Cross multiply
    123,890.42x = 170,967.84 × 67,302.20
  4. Step 4: Simplify right side
    123,890.42x = 11,506,511,761.25
  5. Step 5: Solve for x
    x = 11,506,511,761.25/123,890.42
  6. Step 6: Final answer
    x = 92,876.53

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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.