Home / 103,977.59-143,423.01-68,169.92

Finding the Fourth Proportional to 103,977.59, 143,423.01 and 68,169.92

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Solution

The fourth proportional to 103,977.59, 143,423.01 and 68,169.92 is: 94,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,977.59 : 143,423.01 = 68,169.92 : x
  2. Step 2: Convert to fraction form
    103,977.59/143,423.01 = 68,169.92/x
  3. Step 3: Cross multiply
    103,977.59x = 143,423.01 × 68,169.92
  4. Step 4: Simplify right side
    103,977.59x = 9,777,134,400.74
  5. Step 5: Solve for x
    x = 9,777,134,400.74/103,977.59
  6. Step 6: Final answer
    x = 94,031.17

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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.