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Finding the Fourth Proportional to 181,430.21, 250,373.03 and 99,763.81

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Solution

The fourth proportional to 181,430.21, 250,373.03 and 99,763.81 is: 137,673.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,430.21 : 250,373.03 = 99,763.81 : x
  2. Step 2: Convert to fraction form
    181,430.21/250,373.03 = 99,763.81/x
  3. Step 3: Cross multiply
    181,430.21x = 250,373.03 × 99,763.81
  4. Step 4: Simplify right side
    181,430.21x = 24,978,165,892.77
  5. Step 5: Solve for x
    x = 24,978,165,892.77/181,430.21
  6. Step 6: Final answer
    x = 137,673.69

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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.