Home / 103,819.59-143,274.02-58,498.11

Finding the Fourth Proportional to 103,819.59, 143,274.02 and 58,498.11

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Solution

The fourth proportional to 103,819.59, 143,274.02 and 58,498.11 is: 80,729.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,819.59 : 143,274.02 = 58,498.11 : x
  2. Step 2: Convert to fraction form
    103,819.59/143,274.02 = 58,498.11/x
  3. Step 3: Cross multiply
    103,819.59x = 143,274.02 × 58,498.11
  4. Step 4: Simplify right side
    103,819.59x = 8,381,259,089.61
  5. Step 5: Solve for x
    x = 8,381,259,089.61/103,819.59
  6. Step 6: Final answer
    x = 80,729.07

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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.