Home / 103,988.22-143,503.32-58,666.20

Finding the Fourth Proportional to 103,988.22, 143,503.32 and 58,666.20

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Solution

The fourth proportional to 103,988.22, 143,503.32 and 58,666.20 is: 80,959.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,988.22 : 143,503.32 = 58,666.20 : x
  2. Step 2: Convert to fraction form
    103,988.22/143,503.32 = 58,666.20/x
  3. Step 3: Cross multiply
    103,988.22x = 143,503.32 × 58,666.20
  4. Step 4: Simplify right side
    103,988.22x = 8,418,794,471.78
  5. Step 5: Solve for x
    x = 8,418,794,471.78/103,988.22
  6. Step 6: Final answer
    x = 80,959.12

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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.