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Finding the Fourth Proportional to 163,914.59, 245,807.18 and 79,649.78

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Solution

The fourth proportional to 163,914.59, 245,807.18 and 79,649.78 is: 119,443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,914.59 : 245,807.18 = 79,649.78 : x
  2. Step 2: Convert to fraction form
    163,914.59/245,807.18 = 79,649.78/x
  3. Step 3: Cross multiply
    163,914.59x = 245,807.18 × 79,649.78
  4. Step 4: Simplify right side
    163,914.59x = 19,578,488,087.50
  5. Step 5: Solve for x
    x = 19,578,488,087.50/163,914.59
  6. Step 6: Final answer
    x = 119,443.23

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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.