Home / 141,484.28-195,245.08-77,820.72

Finding the Fourth Proportional to 141,484.28, 195,245.08 and 77,820.72

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Solution

The fourth proportional to 141,484.28, 195,245.08 and 77,820.72 is: 107,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,484.28 : 195,245.08 = 77,820.72 : x
  2. Step 2: Convert to fraction form
    141,484.28/195,245.08 = 77,820.72/x
  3. Step 3: Cross multiply
    141,484.28x = 195,245.08 × 77,820.72
  4. Step 4: Simplify right side
    141,484.28x = 15,194,112,702.06
  5. Step 5: Solve for x
    x = 15,194,112,702.06/141,484.28
  6. Step 6: Final answer
    x = 107,390.82

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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.