Home / 131,897.96-182,015.40-77,449.28

Finding the Fourth Proportional to 131,897.96, 182,015.40 and 77,449.28

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Solution

The fourth proportional to 131,897.96, 182,015.40 and 77,449.28 is: 106,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,897.96 : 182,015.40 = 77,449.28 : x
  2. Step 2: Convert to fraction form
    131,897.96/182,015.40 = 77,449.28/x
  3. Step 3: Cross multiply
    131,897.96x = 182,015.40 × 77,449.28
  4. Step 4: Simplify right side
    131,897.96x = 14,096,961,678.91
  5. Step 5: Solve for x
    x = 14,096,961,678.91/131,897.96
  6. Step 6: Final answer
    x = 106,877.78

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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.