Home / 86,276.23-129,435.83-68,573.68

Finding the Fourth Proportional to 86,276.23, 129,435.83 and 68,573.68

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Solution

The fourth proportional to 86,276.23, 129,435.83 and 68,573.68 is: 102,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,276.23 : 129,435.83 = 68,573.68 : x
  2. Step 2: Convert to fraction form
    86,276.23/129,435.83 = 68,573.68/x
  3. Step 3: Cross multiply
    86,276.23x = 129,435.83 × 68,573.68
  4. Step 4: Simplify right side
    86,276.23x = 8,875,891,186.95
  5. Step 5: Solve for x
    x = 8,875,891,186.95/86,276.23
  6. Step 6: Final answer
    x = 102,877.60

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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.