Home / 103,734.95-143,167.91-58,421.79

Finding the Fourth Proportional to 103,734.95, 143,167.91 and 58,421.79

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Solution

The fourth proportional to 103,734.95, 143,167.91 and 58,421.79 is: 80,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,734.95 : 143,167.91 = 58,421.79 : x
  2. Step 2: Convert to fraction form
    103,734.95/143,167.91 = 58,421.79/x
  3. Step 3: Cross multiply
    103,734.95x = 143,167.91 × 58,421.79
  4. Step 4: Simplify right side
    103,734.95x = 8,364,125,280.65
  5. Step 5: Solve for x
    x = 8,364,125,280.65/103,734.95
  6. Step 6: Final answer
    x = 80,629.78

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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.