Home / 123,414.30-170,312.40-66,825.63

Finding the Fourth Proportional to 123,414.30, 170,312.40 and 66,825.63

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Solution

The fourth proportional to 123,414.30, 170,312.40 and 66,825.63 is: 92,219.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,414.30 : 170,312.40 = 66,825.63 : x
  2. Step 2: Convert to fraction form
    123,414.30/170,312.40 = 66,825.63/x
  3. Step 3: Cross multiply
    123,414.30x = 170,312.40 × 66,825.63
  4. Step 4: Simplify right side
    123,414.30x = 11,381,233,426.81
  5. Step 5: Solve for x
    x = 11,381,233,426.81/123,414.30
  6. Step 6: Final answer
    x = 92,219.73

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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.