Home / 100,681.76-151,012.25-34,120.17

Finding the Fourth Proportional to 100,681.76, 151,012.25 and 34,120.17

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Solution

The fourth proportional to 100,681.76, 151,012.25 and 34,120.17 is: 51,176.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,681.76 : 151,012.25 = 34,120.17 : x
  2. Step 2: Convert to fraction form
    100,681.76/151,012.25 = 34,120.17/x
  3. Step 3: Cross multiply
    100,681.76x = 151,012.25 × 34,120.17
  4. Step 4: Simplify right side
    100,681.76x = 5,152,563,471.48
  5. Step 5: Solve for x
    x = 5,152,563,471.48/100,681.76
  6. Step 6: Final answer
    x = 51,176.73

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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.