Home / 141,642.39-195,470.37-77,984.10

Finding the Fourth Proportional to 141,642.39, 195,470.37 and 77,984.10

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Solution

The fourth proportional to 141,642.39, 195,470.37 and 77,984.10 is: 107,620.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,642.39 : 195,470.37 = 77,984.10 : x
  2. Step 2: Convert to fraction form
    141,642.39/195,470.37 = 77,984.10/x
  3. Step 3: Cross multiply
    141,642.39x = 195,470.37 × 77,984.10
  4. Step 4: Simplify right side
    141,642.39x = 15,243,580,881.12
  5. Step 5: Solve for x
    x = 15,243,580,881.12/141,642.39
  6. Step 6: Final answer
    x = 107,620.19

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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.