Home / 86,108.20-129,181.05-36,159.82

Finding the Fourth Proportional to 86,108.20, 129,181.05 and 36,159.82

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Solution

The fourth proportional to 86,108.20, 129,181.05 and 36,159.82 is: 54,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,108.20 : 129,181.05 = 36,159.82 : x
  2. Step 2: Convert to fraction form
    86,108.20/129,181.05 = 36,159.82/x
  3. Step 3: Cross multiply
    86,108.20x = 129,181.05 × 36,159.82
  4. Step 4: Simplify right side
    86,108.20x = 4,671,163,515.41
  5. Step 5: Solve for x
    x = 4,671,163,515.41/86,108.20
  6. Step 6: Final answer
    x = 54,247.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.