Home / 123,429.42-170,332.61-66,840.80

Finding the Fourth Proportional to 123,429.42, 170,332.61 and 66,840.80

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Solution

The fourth proportional to 123,429.42, 170,332.61 and 66,840.80 is: 92,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,429.42 : 170,332.61 = 66,840.80 : x
  2. Step 2: Convert to fraction form
    123,429.42/170,332.61 = 66,840.80/x
  3. Step 3: Cross multiply
    123,429.42x = 170,332.61 × 66,840.80
  4. Step 4: Simplify right side
    123,429.42x = 11,385,166,732.62
  5. Step 5: Solve for x
    x = 11,385,166,732.62/123,429.42
  6. Step 6: Final answer
    x = 92,240.30

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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.