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Finding the Fourth Proportional to 123,252.98, 170,043.71 and 80,868.92

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Solution

The fourth proportional to 123,252.98, 170,043.71 and 80,868.92 is: 111,569.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,252.98 : 170,043.71 = 80,868.92 : x
  2. Step 2: Convert to fraction form
    123,252.98/170,043.71 = 80,868.92/x
  3. Step 3: Cross multiply
    123,252.98x = 170,043.71 × 80,868.92
  4. Step 4: Simplify right side
    123,252.98x = 13,751,249,925.93
  5. Step 5: Solve for x
    x = 13,751,249,925.93/123,252.98
  6. Step 6: Final answer
    x = 111,569.31

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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.