Home / 141,771.17-195,648.65-81,352.87

Finding the Fourth Proportional to 141,771.17, 195,648.65 and 81,352.87

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Solution

The fourth proportional to 141,771.17, 195,648.65 and 81,352.87 is: 112,269.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,771.17 : 195,648.65 = 81,352.87 : x
  2. Step 2: Convert to fraction form
    141,771.17/195,648.65 = 81,352.87/x
  3. Step 3: Cross multiply
    141,771.17x = 195,648.65 × 81,352.87
  4. Step 4: Simplify right side
    141,771.17x = 15,916,578,598.31
  5. Step 5: Solve for x
    x = 15,916,578,598.31/141,771.17
  6. Step 6: Final answer
    x = 112,269.50

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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.