Home / 102,077.29-140,873.04-56,765.41

Finding the Fourth Proportional to 102,077.29, 140,873.04 and 56,765.41

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Solution

The fourth proportional to 102,077.29, 140,873.04 and 56,765.41 is: 78,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,077.29 : 140,873.04 = 56,765.41 : x
  2. Step 2: Convert to fraction form
    102,077.29/140,873.04 = 56,765.41/x
  3. Step 3: Cross multiply
    102,077.29x = 140,873.04 × 56,765.41
  4. Step 4: Simplify right side
    102,077.29x = 7,996,715,873.55
  5. Step 5: Solve for x
    x = 7,996,715,873.55/102,077.29
  6. Step 6: Final answer
    x = 78,339.81

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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.