Home / 123,237.04-170,067.12-66,648.40

Finding the Fourth Proportional to 123,237.04, 170,067.12 and 66,648.40

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Solution

The fourth proportional to 123,237.04, 170,067.12 and 66,648.40 is: 91,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,237.04 : 170,067.12 = 66,648.40 : x
  2. Step 2: Convert to fraction form
    123,237.04/170,067.12 = 66,648.40/x
  3. Step 3: Cross multiply
    123,237.04x = 170,067.12 × 66,648.40
  4. Step 4: Simplify right side
    123,237.04x = 11,334,701,440.61
  5. Step 5: Solve for x
    x = 11,334,701,440.61/123,237.04
  6. Step 6: Final answer
    x = 91,974.79

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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.