Home / 141,140.16-194,771.52-80,720.64

Finding the Fourth Proportional to 141,140.16, 194,771.52 and 80,720.64

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Solution

The fourth proportional to 141,140.16, 194,771.52 and 80,720.64 is: 111,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,140.16 : 194,771.52 = 80,720.64 : x
  2. Step 2: Convert to fraction form
    141,140.16/194,771.52 = 80,720.64/x
  3. Step 3: Cross multiply
    141,140.16x = 194,771.52 × 80,720.64
  4. Step 4: Simplify right side
    141,140.16x = 15,722,081,748.17
  5. Step 5: Solve for x
    x = 15,722,081,748.17/141,140.16
  6. Step 6: Final answer
    x = 111,393.40

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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.