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Finding the Fourth Proportional to 163,960.10, 245,830.80 and 75,167.90

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Solution

The fourth proportional to 163,960.10, 245,830.80 and 75,167.90 is: 112,701.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,960.10 : 245,830.80 = 75,167.90 : x
  2. Step 2: Convert to fraction form
    163,960.10/245,830.80 = 75,167.90/x
  3. Step 3: Cross multiply
    163,960.10x = 245,830.80 × 75,167.90
  4. Step 4: Simplify right side
    163,960.10x = 18,478,584,991.32
  5. Step 5: Solve for x
    x = 18,478,584,991.32/163,960.10
  6. Step 6: Final answer
    x = 112,701.72

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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.