Home / 103,204.74-142,290.66-66,841.92

Finding the Fourth Proportional to 103,204.74, 142,290.66 and 66,841.92

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Solution

The fourth proportional to 103,204.74, 142,290.66 and 66,841.92 is: 92,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,204.74 : 142,290.66 = 66,841.92 : x
  2. Step 2: Convert to fraction form
    103,204.74/142,290.66 = 66,841.92/x
  3. Step 3: Cross multiply
    103,204.74x = 142,290.66 × 66,841.92
  4. Step 4: Simplify right side
    103,204.74x = 9,510,980,912.47
  5. Step 5: Solve for x
    x = 9,510,980,912.47/103,204.74
  6. Step 6: Final answer
    x = 92,156.43

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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.