Home / 141,435.12-195,181.16-77,777.04

Finding the Fourth Proportional to 141,435.12, 195,181.16 and 77,777.04

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Solution

The fourth proportional to 141,435.12, 195,181.16 and 77,777.04 is: 107,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,435.12 : 195,181.16 = 77,777.04 : x
  2. Step 2: Convert to fraction form
    141,435.12/195,181.16 = 77,777.04/x
  3. Step 3: Cross multiply
    141,435.12x = 195,181.16 × 77,777.04
  4. Step 4: Simplify right side
    141,435.12x = 15,180,612,888.57
  5. Step 5: Solve for x
    x = 15,180,612,888.57/141,435.12
  6. Step 6: Final answer
    x = 107,332.70

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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.