Home / 123,444.18-170,352.81-66,855.78

Finding the Fourth Proportional to 123,444.18, 170,352.81 and 66,855.78

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Solution

The fourth proportional to 123,444.18, 170,352.81 and 66,855.78 is: 92,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,444.18 : 170,352.81 = 66,855.78 : x
  2. Step 2: Convert to fraction form
    123,444.18/170,352.81 = 66,855.78/x
  3. Step 3: Cross multiply
    123,444.18x = 170,352.81 × 66,855.78
  4. Step 4: Simplify right side
    123,444.18x = 11,389,069,987.74
  5. Step 5: Solve for x
    x = 11,389,069,987.74/123,444.18
  6. Step 6: Final answer
    x = 92,260.89

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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.