Home / 123,534.60-170,478.36-66,945.84

Finding the Fourth Proportional to 123,534.60, 170,478.36 and 66,945.84

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Solution

The fourth proportional to 123,534.60, 170,478.36 and 66,945.84 is: 92,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,534.60 : 170,478.36 = 66,945.84 : x
  2. Step 2: Convert to fraction form
    123,534.60/170,478.36 = 66,945.84/x
  3. Step 3: Cross multiply
    123,534.60x = 170,478.36 × 66,945.84
  4. Step 4: Simplify right side
    123,534.60x = 11,412,817,012.02
  5. Step 5: Solve for x
    x = 11,412,817,012.02/123,534.60
  6. Step 6: Final answer
    x = 92,385.59

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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.