Home / 141,383.04-195,108.72-77,721.92

Finding the Fourth Proportional to 141,383.04, 195,108.72 and 77,721.92

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Solution

The fourth proportional to 141,383.04, 195,108.72 and 77,721.92 is: 107,256.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,383.04 : 195,108.72 = 77,721.92 : x
  2. Step 2: Convert to fraction form
    141,383.04/195,108.72 = 77,721.92/x
  3. Step 3: Cross multiply
    141,383.04x = 195,108.72 × 77,721.92
  4. Step 4: Simplify right side
    141,383.04x = 15,164,224,327.14
  5. Step 5: Solve for x
    x = 15,164,224,327.14/141,383.04
  6. Step 6: Final answer
    x = 107,256.32

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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.