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Finding the Fourth Proportional to 141,640.20, 198,646.20 and 141,640.20

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Solution

The fourth proportional to 141,640.20, 198,646.20 and 141,640.20 is: 198,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,640.20 : 198,646.20 = 141,640.20 : x
  2. Step 2: Convert to fraction form
    141,640.20/198,646.20 = 141,640.20/x
  3. Step 3: Cross multiply
    141,640.20x = 198,646.20 × 141,640.20
  4. Step 4: Simplify right side
    141,640.20x = 28,136,287,497.24
  5. Step 5: Solve for x
    x = 28,136,287,497.24/141,640.20
  6. Step 6: Final answer
    x = 198,646.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.