Home / 102,281.32-141,144.29-56,961.22

Finding the Fourth Proportional to 102,281.32, 141,144.29 and 56,961.22

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Solution

The fourth proportional to 102,281.32, 141,144.29 and 56,961.22 is: 78,604.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,281.32 : 141,144.29 = 56,961.22 : x
  2. Step 2: Convert to fraction form
    102,281.32/141,144.29 = 56,961.22/x
  3. Step 3: Cross multiply
    102,281.32x = 141,144.29 × 56,961.22
  4. Step 4: Simplify right side
    102,281.32x = 8,039,749,963.91
  5. Step 5: Solve for x
    x = 8,039,749,963.91/102,281.32
  6. Step 6: Final answer
    x = 78,604.28

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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.