Home / 123,215.29-170,036.98-66,626.53

Finding the Fourth Proportional to 123,215.29, 170,036.98 and 66,626.53

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Solution

The fourth proportional to 123,215.29, 170,036.98 and 66,626.53 is: 91,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,215.29 : 170,036.98 = 66,626.53 : x
  2. Step 2: Convert to fraction form
    123,215.29/170,036.98 = 66,626.53/x
  3. Step 3: Cross multiply
    123,215.29x = 170,036.98 × 66,626.53
  4. Step 4: Simplify right side
    123,215.29x = 11,328,973,949.08
  5. Step 5: Solve for x
    x = 11,328,973,949.08/123,215.29
  6. Step 6: Final answer
    x = 91,944.55

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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.