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Finding the Fourth Proportional to 109,711.72, 164,567.58 and 26,605

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Solution

The fourth proportional to 109,711.72, 164,567.58 and 26,605 is: 39,907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,711.72 : 164,567.58 = 26,605 : x
  2. Step 2: Convert to fraction form
    109,711.72/164,567.58 = 26,605/x
  3. Step 3: Cross multiply
    109,711.72x = 164,567.58 × 26,605
  4. Step 4: Simplify right side
    109,711.72x = 4,378,320,465.90
  5. Step 5: Solve for x
    x = 4,378,320,465.90/109,711.72
  6. Step 6: Final answer
    x = 39,907.50

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1.5x scale

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.