Home / 141,582.96-195,384.36-77,920.80

Finding the Fourth Proportional to 141,582.96, 195,384.36 and 77,920.80

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Solution

The fourth proportional to 141,582.96, 195,384.36 and 77,920.80 is: 107,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,582.96 : 195,384.36 = 77,920.80 : x
  2. Step 2: Convert to fraction form
    141,582.96/195,384.36 = 77,920.80/x
  3. Step 3: Cross multiply
    141,582.96x = 195,384.36 × 77,920.80
  4. Step 4: Simplify right side
    141,582.96x = 15,224,505,638.69
  5. Step 5: Solve for x
    x = 15,224,505,638.69/141,582.96
  6. Step 6: Final answer
    x = 107,530.64

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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.