Home / 131,907.20-182,031.71-71,479.49

Finding the Fourth Proportional to 131,907.20, 182,031.71 and 71,479.49

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Solution

The fourth proportional to 131,907.20, 182,031.71 and 71,479.49 is: 98,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,907.20 : 182,031.71 = 71,479.49 : x
  2. Step 2: Convert to fraction form
    131,907.20/182,031.71 = 71,479.49/x
  3. Step 3: Cross multiply
    131,907.20x = 182,031.71 × 71,479.49
  4. Step 4: Simplify right side
    131,907.20x = 13,011,532,527.07
  5. Step 5: Solve for x
    x = 13,011,532,527.07/131,907.20
  6. Step 6: Final answer
    x = 98,641.57

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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.