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Finding the Fourth Proportional to 141,491.16, 195,255.72 and 77,825.16

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Solution

The fourth proportional to 141,491.16, 195,255.72 and 77,825.16 is: 107,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,491.16 : 195,255.72 = 77,825.16 : x
  2. Step 2: Convert to fraction form
    141,491.16/195,255.72 = 77,825.16/x
  3. Step 3: Cross multiply
    141,491.16x = 195,255.72 × 77,825.16
  4. Step 4: Simplify right side
    141,491.16x = 15,195,807,649.92
  5. Step 5: Solve for x
    x = 15,195,807,649.92/141,491.16
  6. Step 6: Final answer
    x = 107,397.58

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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.