Home / 141,821.74-195,710.16-78,159.52

Finding the Fourth Proportional to 141,821.74, 195,710.16 and 78,159.52

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Solution

The fourth proportional to 141,821.74, 195,710.16 and 78,159.52 is: 107,858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,821.74 : 195,710.16 = 78,159.52 : x
  2. Step 2: Convert to fraction form
    141,821.74/195,710.16 = 78,159.52/x
  3. Step 3: Cross multiply
    141,821.74x = 195,710.16 × 78,159.52
  4. Step 4: Simplify right side
    141,821.74x = 15,296,612,164.72
  5. Step 5: Solve for x
    x = 15,296,612,164.72/141,821.74
  6. Step 6: Final answer
    x = 107,858.02

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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.