Home / 131,149.48-181,001.64-74,569.36

Finding the Fourth Proportional to 131,149.48, 181,001.64 and 74,569.36

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Solution

The fourth proportional to 131,149.48, 181,001.64 and 74,569.36 is: 102,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,149.48 : 181,001.64 = 74,569.36 : x
  2. Step 2: Convert to fraction form
    131,149.48/181,001.64 = 74,569.36/x
  3. Step 3: Cross multiply
    131,149.48x = 181,001.64 × 74,569.36
  4. Step 4: Simplify right side
    131,149.48x = 13,497,176,453.75
  5. Step 5: Solve for x
    x = 13,497,176,453.75/131,149.48
  6. Step 6: Final answer
    x = 102,914.45

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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.