Home / 147,412.06-203,428.65-80,344.06

Finding the Fourth Proportional to 147,412.06, 203,428.65 and 80,344.06

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Solution

The fourth proportional to 147,412.06, 203,428.65 and 80,344.06 is: 110,874.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,412.06 : 203,428.65 = 80,344.06 : x
  2. Step 2: Convert to fraction form
    147,412.06/203,428.65 = 80,344.06/x
  3. Step 3: Cross multiply
    147,412.06x = 203,428.65 × 80,344.06
  4. Step 4: Simplify right side
    147,412.06x = 16,344,283,661.32
  5. Step 5: Solve for x
    x = 16,344,283,661.32/147,412.06
  6. Step 6: Final answer
    x = 110,874.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.