Home / 138,786.30-208,051.88-50,018.09

Finding the Fourth Proportional to 138,786.30, 208,051.88 and 50,018.09

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Solution

The fourth proportional to 138,786.30, 208,051.88 and 50,018.09 is: 74,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,786.30 : 208,051.88 = 50,018.09 : x
  2. Step 2: Convert to fraction form
    138,786.30/208,051.88 = 50,018.09/x
  3. Step 3: Cross multiply
    138,786.30x = 208,051.88 × 50,018.09
  4. Step 4: Simplify right side
    138,786.30x = 10,406,356,368.16
  5. Step 5: Solve for x
    x = 10,406,356,368.16/138,786.30
  6. Step 6: Final answer
    x = 74,981.15

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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.