Home / 123,868.08-170,938.44-67,280.40

Finding the Fourth Proportional to 123,868.08, 170,938.44 and 67,280.40

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Solution

The fourth proportional to 123,868.08, 170,938.44 and 67,280.40 is: 92,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,868.08 : 170,938.44 = 67,280.40 : x
  2. Step 2: Convert to fraction form
    123,868.08/170,938.44 = 67,280.40/x
  3. Step 3: Cross multiply
    123,868.08x = 170,938.44 × 67,280.40
  4. Step 4: Simplify right side
    123,868.08x = 11,500,806,618.58
  5. Step 5: Solve for x
    x = 11,500,806,618.58/123,868.08
  6. Step 6: Final answer
    x = 92,847.22

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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.