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Finding the Fourth Proportional to 105,775.58, 158,420.37 and 88,921.10

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Solution

The fourth proportional to 105,775.58, 158,420.37 and 88,921.10 is: 133,177.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,775.58 : 158,420.37 = 88,921.10 : x
  2. Step 2: Convert to fraction form
    105,775.58/158,420.37 = 88,921.10/x
  3. Step 3: Cross multiply
    105,775.58x = 158,420.37 × 88,921.10
  4. Step 4: Simplify right side
    105,775.58x = 14,086,913,562.81
  5. Step 5: Solve for x
    x = 14,086,913,562.81/105,775.58
  6. Step 6: Final answer
    x = 133,177.37

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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.