Home / 138,788.30-208,054.88-50,020.08

Finding the Fourth Proportional to 138,788.30, 208,054.88 and 50,020.08

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Solution

The fourth proportional to 138,788.30, 208,054.88 and 50,020.08 is: 74,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,788.30 : 208,054.88 = 50,020.08 : x
  2. Step 2: Convert to fraction form
    138,788.30/208,054.88 = 50,020.08/x
  3. Step 3: Cross multiply
    138,788.30x = 208,054.88 × 50,020.08
  4. Step 4: Simplify right side
    138,788.30x = 10,406,921,741.99
  5. Step 5: Solve for x
    x = 10,406,921,741.99/138,788.30
  6. Step 6: Final answer
    x = 74,984.14

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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.