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Finding the Fourth Proportional to 163,699.30, 245,419.35 and 89,827.30

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Solution

The fourth proportional to 163,699.30, 245,419.35 and 89,827.30 is: 134,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,699.30 : 245,419.35 = 89,827.30 : x
  2. Step 2: Convert to fraction form
    163,699.30/245,419.35 = 89,827.30/x
  3. Step 3: Cross multiply
    163,699.30x = 245,419.35 × 89,827.30
  4. Step 4: Simplify right side
    163,699.30x = 22,045,357,578.26
  5. Step 5: Solve for x
    x = 22,045,357,578.26/163,699.30
  6. Step 6: Final answer
    x = 134,669.83

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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.