Home / 141,402.18-195,133.24-77,739.42

Finding the Fourth Proportional to 141,402.18, 195,133.24 and 77,739.42

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Solution

The fourth proportional to 141,402.18, 195,133.24 and 77,739.42 is: 107,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,402.18 : 195,133.24 = 77,739.42 : x
  2. Step 2: Convert to fraction form
    141,402.18/195,133.24 = 77,739.42/x
  3. Step 3: Cross multiply
    141,402.18x = 195,133.24 × 77,739.42
  4. Step 4: Simplify right side
    141,402.18x = 15,169,544,900.32
  5. Step 5: Solve for x
    x = 15,169,544,900.32/141,402.18
  6. Step 6: Final answer
    x = 107,279.43

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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.