Home / 123,429.48-170,332.82-66,840.92

Finding the Fourth Proportional to 123,429.48, 170,332.82 and 66,840.92

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Solution

The fourth proportional to 123,429.48, 170,332.82 and 66,840.92 is: 92,240.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,429.48 : 170,332.82 = 66,840.92 : x
  2. Step 2: Convert to fraction form
    123,429.48/170,332.82 = 66,840.92/x
  3. Step 3: Cross multiply
    123,429.48x = 170,332.82 × 66,840.92
  4. Step 4: Simplify right side
    123,429.48x = 11,385,202,394.99
  5. Step 5: Solve for x
    x = 11,385,202,394.99/123,429.48
  6. Step 6: Final answer
    x = 92,240.54

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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.