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Finding the Fourth Proportional to 163,442.88, 245,134.89 and 45,084.87

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Solution

The fourth proportional to 163,442.88, 245,134.89 and 45,084.87 is: 67,619.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,442.88 : 245,134.89 = 45,084.87 : x
  2. Step 2: Convert to fraction form
    163,442.88/245,134.89 = 45,084.87/x
  3. Step 3: Cross multiply
    163,442.88x = 245,134.89 × 45,084.87
  4. Step 4: Simplify right side
    163,442.88x = 11,051,874,648.11
  5. Step 5: Solve for x
    x = 11,051,874,648.11/163,442.88
  6. Step 6: Final answer
    x = 67,619.19

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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.