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Finding the Fourth Proportional to 181,811.70, 272,717.55 and 103,079.70

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Solution

The fourth proportional to 181,811.70, 272,717.55 and 103,079.70 is: 154,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,811.70 : 272,717.55 = 103,079.70 : x
  2. Step 2: Convert to fraction form
    181,811.70/272,717.55 = 103,079.70/x
  3. Step 3: Cross multiply
    181,811.70x = 272,717.55 × 103,079.70
  4. Step 4: Simplify right side
    181,811.70x = 28,111,643,238.74
  5. Step 5: Solve for x
    x = 28,111,643,238.74/181,811.70
  6. Step 6: Final answer
    x = 154,619.55

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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.