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Finding the Fourth Proportional to 131,775.66, 181,848.24 and 71,345.82

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Solution

The fourth proportional to 131,775.66, 181,848.24 and 71,345.82 is: 98,456.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,775.66 : 181,848.24 = 71,345.82 : x
  2. Step 2: Convert to fraction form
    131,775.66/181,848.24 = 71,345.82/x
  3. Step 3: Cross multiply
    131,775.66x = 181,848.24 × 71,345.82
  4. Step 4: Simplify right side
    131,775.66x = 12,974,111,798.36
  5. Step 5: Solve for x
    x = 12,974,111,798.36/131,775.66
  6. Step 6: Final answer
    x = 98,456.06

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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.