Home / 103,167.38-142,400.75-66,867.59

Finding the Fourth Proportional to 103,167.38, 142,400.75 and 66,867.59

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Solution

The fourth proportional to 103,167.38, 142,400.75 and 66,867.59 is: 92,296.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,167.38 : 142,400.75 = 66,867.59 : x
  2. Step 2: Convert to fraction form
    103,167.38/142,400.75 = 66,867.59/x
  3. Step 3: Cross multiply
    103,167.38x = 142,400.75 × 66,867.59
  4. Step 4: Simplify right side
    103,167.38x = 9,521,994,988.36
  5. Step 5: Solve for x
    x = 9,521,994,988.36/103,167.38
  6. Step 6: Final answer
    x = 92,296.56

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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.