Home / 123,429.10-170,332.68-66,840.52

Finding the Fourth Proportional to 123,429.10, 170,332.68 and 66,840.52

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Solution

The fourth proportional to 123,429.10, 170,332.68 and 66,840.52 is: 92,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,429.10 : 170,332.68 = 66,840.52 : x
  2. Step 2: Convert to fraction form
    123,429.10/170,332.68 = 66,840.52/x
  3. Step 3: Cross multiply
    123,429.10x = 170,332.68 × 66,840.52
  4. Step 4: Simplify right side
    123,429.10x = 11,385,124,904.19
  5. Step 5: Solve for x
    x = 11,385,124,904.19/123,429.10
  6. Step 6: Final answer
    x = 92,240.20

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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.