Home / 105,718.74-158,538.60-42,517.53

Finding the Fourth Proportional to 105,718.74, 158,538.60 and 42,517.53

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Solution

The fourth proportional to 105,718.74, 158,538.60 and 42,517.53 is: 63,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,718.74 : 158,538.60 = 42,517.53 : x
  2. Step 2: Convert to fraction form
    105,718.74/158,538.60 = 42,517.53/x
  3. Step 3: Cross multiply
    105,718.74x = 158,538.60 × 42,517.53
  4. Step 4: Simplify right side
    105,718.74x = 6,740,669,681.66
  5. Step 5: Solve for x
    x = 6,740,669,681.66/105,718.74
  6. Step 6: Final answer
    x = 63,760.41

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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.