Home / 141,899.76-195,823.20-77,368.47

Finding the Fourth Proportional to 141,899.76, 195,823.20 and 77,368.47

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Solution

The fourth proportional to 141,899.76, 195,823.20 and 77,368.47 is: 106,769.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,899.76 : 195,823.20 = 77,368.47 : x
  2. Step 2: Convert to fraction form
    141,899.76/195,823.20 = 77,368.47/x
  3. Step 3: Cross multiply
    141,899.76x = 195,823.20 × 77,368.47
  4. Step 4: Simplify right side
    141,899.76x = 15,150,541,374.50
  5. Step 5: Solve for x
    x = 15,150,541,374.50/141,899.76
  6. Step 6: Final answer
    x = 106,769.32

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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.