Home / 131,946.72-182,085.44-71,515.81

Finding the Fourth Proportional to 131,946.72, 182,085.44 and 71,515.81

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Solution

The fourth proportional to 131,946.72, 182,085.44 and 71,515.81 is: 98,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,946.72 : 182,085.44 = 71,515.81 : x
  2. Step 2: Convert to fraction form
    131,946.72/182,085.44 = 71,515.81/x
  3. Step 3: Cross multiply
    131,946.72x = 182,085.44 × 71,515.81
  4. Step 4: Simplify right side
    131,946.72x = 13,021,986,978.88
  5. Step 5: Solve for x
    x = 13,021,986,978.88/131,946.72
  6. Step 6: Final answer
    x = 98,691.25

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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.