Home / 141,431.52-195,180.72-77,774.88

Finding the Fourth Proportional to 141,431.52, 195,180.72 and 77,774.88

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Solution

The fourth proportional to 141,431.52, 195,180.72 and 77,774.88 is: 107,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,431.52 : 195,180.72 = 77,774.88 : x
  2. Step 2: Convert to fraction form
    141,431.52/195,180.72 = 77,774.88/x
  3. Step 3: Cross multiply
    141,431.52x = 195,180.72 × 77,774.88
  4. Step 4: Simplify right side
    141,431.52x = 15,180,157,076.31
  5. Step 5: Solve for x
    x = 15,180,157,076.31/141,431.52
  6. Step 6: Final answer
    x = 107,332.21

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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.