Home / 131,823.76-181,926.12-75,243.64

Finding the Fourth Proportional to 131,823.76, 181,926.12 and 75,243.64

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Solution

The fourth proportional to 131,823.76, 181,926.12 and 75,243.64 is: 103,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,823.76 : 181,926.12 = 75,243.64 : x
  2. Step 2: Convert to fraction form
    131,823.76/181,926.12 = 75,243.64/x
  3. Step 3: Cross multiply
    131,823.76x = 181,926.12 × 75,243.64
  4. Step 4: Simplify right side
    131,823.76x = 13,688,783,479.88
  5. Step 5: Solve for x
    x = 13,688,783,479.88/131,823.76
  6. Step 6: Final answer
    x = 103,841.55

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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.