Home / 141,947.64-195,880.68-78,281.64

Finding the Fourth Proportional to 141,947.64, 195,880.68 and 78,281.64

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Solution

The fourth proportional to 141,947.64, 195,880.68 and 78,281.64 is: 108,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,947.64 : 195,880.68 = 78,281.64 : x
  2. Step 2: Convert to fraction form
    141,947.64/195,880.68 = 78,281.64/x
  3. Step 3: Cross multiply
    141,947.64x = 195,880.68 × 78,281.64
  4. Step 4: Simplify right side
    141,947.64x = 15,333,860,874.72
  5. Step 5: Solve for x
    x = 15,333,860,874.72/141,947.64
  6. Step 6: Final answer
    x = 108,024.77

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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.