Home / 141,407.30-195,114.09-79,319.78

Finding the Fourth Proportional to 141,407.30, 195,114.09 and 79,319.78

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Solution

The fourth proportional to 141,407.30, 195,114.09 and 79,319.78 is: 109,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,407.30 : 195,114.09 = 79,319.78 : x
  2. Step 2: Convert to fraction form
    141,407.30/195,114.09 = 79,319.78/x
  3. Step 3: Cross multiply
    141,407.30x = 195,114.09 × 79,319.78
  4. Step 4: Simplify right side
    141,407.30x = 15,476,406,884.04
  5. Step 5: Solve for x
    x = 15,476,406,884.04/141,407.30
  6. Step 6: Final answer
    x = 109,445.60

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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.