Home / 104,276.90-143,902.86-56,531

Finding the Fourth Proportional to 104,276.90, 143,902.86 and 56,531

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Solution

The fourth proportional to 104,276.90, 143,902.86 and 56,531 is: 78,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,276.90 : 143,902.86 = 56,531 : x
  2. Step 2: Convert to fraction form
    104,276.90/143,902.86 = 56,531/x
  3. Step 3: Cross multiply
    104,276.90x = 143,902.86 × 56,531
  4. Step 4: Simplify right side
    104,276.90x = 8,134,972,578.66
  5. Step 5: Solve for x
    x = 8,134,972,578.66/104,276.90
  6. Step 6: Final answer
    x = 78,013.18

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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.