Home / 138,845.78-208,225.55-50,087.74

Finding the Fourth Proportional to 138,845.78, 208,225.55 and 50,087.74

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Solution

The fourth proportional to 138,845.78, 208,225.55 and 50,087.74 is: 75,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,845.78 : 208,225.55 = 50,087.74 : x
  2. Step 2: Convert to fraction form
    138,845.78/208,225.55 = 50,087.74/x
  3. Step 3: Cross multiply
    138,845.78x = 208,225.55 × 50,087.74
  4. Step 4: Simplify right side
    138,845.78x = 10,429,547,209.76
  5. Step 5: Solve for x
    x = 10,429,547,209.76/138,845.78
  6. Step 6: Final answer
    x = 75,116.05

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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.