Home / 131,098.05-180,929.18-80,140.60

Finding the Fourth Proportional to 131,098.05, 180,929.18 and 80,140.60

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Solution

The fourth proportional to 131,098.05, 180,929.18 and 80,140.60 is: 110,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,098.05 : 180,929.18 = 80,140.60 : x
  2. Step 2: Convert to fraction form
    131,098.05/180,929.18 = 80,140.60/x
  3. Step 3: Cross multiply
    131,098.05x = 180,929.18 × 80,140.60
  4. Step 4: Simplify right side
    131,098.05x = 14,499,773,042.71
  5. Step 5: Solve for x
    x = 14,499,773,042.71/131,098.05
  6. Step 6: Final answer
    x = 110,602.51

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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.