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Finding the Fourth Proportional to 181,951.65, 251,111.75 and 101,392.29

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Solution

The fourth proportional to 181,951.65, 251,111.75 and 101,392.29 is: 139,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,951.65 : 251,111.75 = 101,392.29 : x
  2. Step 2: Convert to fraction form
    181,951.65/251,111.75 = 101,392.29/x
  3. Step 3: Cross multiply
    181,951.65x = 251,111.75 × 101,392.29
  4. Step 4: Simplify right side
    181,951.65x = 25,460,794,871.45
  5. Step 5: Solve for x
    x = 25,460,794,871.45/181,951.65
  6. Step 6: Final answer
    x = 139,931.65

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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.