Home / 123,376.02-170,266.95-69,662.40

Finding the Fourth Proportional to 123,376.02, 170,266.95 and 69,662.40

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Solution

The fourth proportional to 123,376.02, 170,266.95 and 69,662.40 is: 96,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,376.02 : 170,266.95 = 69,662.40 : x
  2. Step 2: Convert to fraction form
    123,376.02/170,266.95 = 69,662.40/x
  3. Step 3: Cross multiply
    123,376.02x = 170,266.95 × 69,662.40
  4. Step 4: Simplify right side
    123,376.02x = 11,861,204,377.68
  5. Step 5: Solve for x
    x = 11,861,204,377.68/123,376.02
  6. Step 6: Final answer
    x = 96,138.65

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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.