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Finding the Fourth Proportional to 132,136.40, 198,230.20 and 57,256.40

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Solution

The fourth proportional to 132,136.40, 198,230.20 and 57,256.40 is: 85,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,136.40 : 198,230.20 = 57,256.40 : x
  2. Step 2: Convert to fraction form
    132,136.40/198,230.20 = 57,256.40/x
  3. Step 3: Cross multiply
    132,136.40x = 198,230.20 × 57,256.40
  4. Step 4: Simplify right side
    132,136.40x = 11,349,947,623.28
  5. Step 5: Solve for x
    x = 11,349,947,623.28/132,136.40
  6. Step 6: Final answer
    x = 85,895.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.