Home / 123,534.12-170,477.07-66,945.50

Finding the Fourth Proportional to 123,534.12, 170,477.07 and 66,945.50

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Solution

The fourth proportional to 123,534.12, 170,477.07 and 66,945.50 is: 92,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,534.12 : 170,477.07 = 66,945.50 : x
  2. Step 2: Convert to fraction form
    123,534.12/170,477.07 = 66,945.50/x
  3. Step 3: Cross multiply
    123,534.12x = 170,477.07 × 66,945.50
  4. Step 4: Simplify right side
    123,534.12x = 11,412,672,689.69
  5. Step 5: Solve for x
    x = 11,412,672,689.69/123,534.12
  6. Step 6: Final answer
    x = 92,384.78

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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.