Home / 123,242.16-170,074.18-66,653.53

Finding the Fourth Proportional to 123,242.16, 170,074.18 and 66,653.53

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Solution

The fourth proportional to 123,242.16, 170,074.18 and 66,653.53 is: 91,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,242.16 : 170,074.18 = 66,653.53 : x
  2. Step 2: Convert to fraction form
    123,242.16/170,074.18 = 66,653.53/x
  3. Step 3: Cross multiply
    123,242.16x = 170,074.18 × 66,653.53
  4. Step 4: Simplify right side
    123,242.16x = 11,336,044,504.81
  5. Step 5: Solve for x
    x = 11,336,044,504.81/123,242.16
  6. Step 6: Final answer
    x = 91,981.87

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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.