Home / 123,890.67-170,968.19-67,302.45

Finding the Fourth Proportional to 123,890.67, 170,968.19 and 67,302.45

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Solution

The fourth proportional to 123,890.67, 170,968.19 and 67,302.45 is: 92,876.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,890.67 : 170,968.19 = 67,302.45 : x
  2. Step 2: Convert to fraction form
    123,890.67/170,968.19 = 67,302.45/x
  3. Step 3: Cross multiply
    123,890.67x = 170,968.19 × 67,302.45
  4. Step 4: Simplify right side
    123,890.67x = 11,506,577,722.55
  5. Step 5: Solve for x
    x = 11,506,577,722.55/123,890.67
  6. Step 6: Final answer
    x = 92,876.87

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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.