Home / 181,728.24-272,502.05-115,117.89

Finding the Fourth Proportional to 181,728.24, 272,502.05 and 115,117.89

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Solution

The fourth proportional to 181,728.24, 272,502.05 and 115,117.89 is: 172,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,728.24 : 272,502.05 = 115,117.89 : x
  2. Step 2: Convert to fraction form
    181,728.24/272,502.05 = 115,117.89/x
  3. Step 3: Cross multiply
    181,728.24x = 272,502.05 × 115,117.89
  4. Step 4: Simplify right side
    181,728.24x = 31,369,860,441.09
  5. Step 5: Solve for x
    x = 31,369,860,441.09/181,728.24
  6. Step 6: Final answer
    x = 172,619.62

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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.