Home / 272,036.20-408,054.30-85,066.60

Finding the Fourth Proportional to 272,036.20, 408,054.30 and 85,066.60

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Solution

The fourth proportional to 272,036.20, 408,054.30 and 85,066.60 is: 127,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,036.20 : 408,054.30 = 85,066.60 : x
  2. Step 2: Convert to fraction form
    272,036.20/408,054.30 = 85,066.60/x
  3. Step 3: Cross multiply
    272,036.20x = 408,054.30 × 85,066.60
  4. Step 4: Simplify right side
    272,036.20x = 34,711,791,916.38
  5. Step 5: Solve for x
    x = 34,711,791,916.38/272,036.20
  6. Step 6: Final answer
    x = 127,599.90

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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.