Home / 123,869.17-170,938.51-67,280.95

Finding the Fourth Proportional to 123,869.17, 170,938.51 and 67,280.95

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Solution

The fourth proportional to 123,869.17, 170,938.51 and 67,280.95 is: 92,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,869.17 : 170,938.51 = 67,280.95 : x
  2. Step 2: Convert to fraction form
    123,869.17/170,938.51 = 67,280.95/x
  3. Step 3: Cross multiply
    123,869.17x = 170,938.51 × 67,280.95
  4. Step 4: Simplify right side
    123,869.17x = 11,500,905,344.38
  5. Step 5: Solve for x
    x = 11,500,905,344.38/123,869.17
  6. Step 6: Final answer
    x = 92,847.20

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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.