Home / 105,384.38-158,057.26-30,486.11

Finding the Fourth Proportional to 105,384.38, 158,057.26 and 30,486.11

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Solution

The fourth proportional to 105,384.38, 158,057.26 and 30,486.11 is: 45,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,384.38 : 158,057.26 = 30,486.11 : x
  2. Step 2: Convert to fraction form
    105,384.38/158,057.26 = 30,486.11/x
  3. Step 3: Cross multiply
    105,384.38x = 158,057.26 × 30,486.11
  4. Step 4: Simplify right side
    105,384.38x = 4,818,550,148.16
  5. Step 5: Solve for x
    x = 4,818,550,148.16/105,384.38
  6. Step 6: Final answer
    x = 45,723.57

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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.