Home / 131,218.44-180,915.93-85,824.52

Finding the Fourth Proportional to 131,218.44, 180,915.93 and 85,824.52

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Solution

The fourth proportional to 131,218.44, 180,915.93 and 85,824.52 is: 118,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,218.44 : 180,915.93 = 85,824.52 : x
  2. Step 2: Convert to fraction form
    131,218.44/180,915.93 = 85,824.52/x
  3. Step 3: Cross multiply
    131,218.44x = 180,915.93 × 85,824.52
  4. Step 4: Simplify right side
    131,218.44x = 15,527,023,672.38
  5. Step 5: Solve for x
    x = 15,527,023,672.38/131,218.44
  6. Step 6: Final answer
    x = 118,329.58

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1.5x scale

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.