Home / 123,217.61-170,027.57-90,969.40

Finding the Fourth Proportional to 123,217.61, 170,027.57 and 90,969.40

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Solution

The fourth proportional to 123,217.61, 170,027.57 and 90,969.40 is: 125,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,217.61 : 170,027.57 = 90,969.40 : x
  2. Step 2: Convert to fraction form
    123,217.61/170,027.57 = 90,969.40/x
  3. Step 3: Cross multiply
    123,217.61x = 170,027.57 × 90,969.40
  4. Step 4: Simplify right side
    123,217.61x = 15,467,304,721.37
  5. Step 5: Solve for x
    x = 15,467,304,721.37/123,217.61
  6. Step 6: Final answer
    x = 125,528.36

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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.