Home / 141,397.64-195,129.26-77,739.48

Finding the Fourth Proportional to 141,397.64, 195,129.26 and 77,739.48

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Solution

The fourth proportional to 141,397.64, 195,129.26 and 77,739.48 is: 107,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,397.64 : 195,129.26 = 77,739.48 : x
  2. Step 2: Convert to fraction form
    141,397.64/195,129.26 = 77,739.48/x
  3. Step 3: Cross multiply
    141,397.64x = 195,129.26 × 77,739.48
  4. Step 4: Simplify right side
    141,397.64x = 15,169,247,205.18
  5. Step 5: Solve for x
    x = 15,169,247,205.18/141,397.64
  6. Step 6: Final answer
    x = 107,280.77

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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.