Home / 120,854.40-181,281.60-114,730.80

Finding the Fourth Proportional to 120,854.40, 181,281.60 and 114,730.80

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Solution

The fourth proportional to 120,854.40, 181,281.60 and 114,730.80 is: 172,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,854.40 : 181,281.60 = 114,730.80 : x
  2. Step 2: Convert to fraction form
    120,854.40/181,281.60 = 114,730.80/x
  3. Step 3: Cross multiply
    120,854.40x = 181,281.60 × 114,730.80
  4. Step 4: Simplify right side
    120,854.40x = 20,798,582,993.28
  5. Step 5: Solve for x
    x = 20,798,582,993.28/120,854.40
  6. Step 6: Final answer
    x = 172,096.20

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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.