Home / 109,315.10-163,972.65-97,067.90

Finding the Fourth Proportional to 109,315.10, 163,972.65 and 97,067.90

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Solution

The fourth proportional to 109,315.10, 163,972.65 and 97,067.90 is: 145,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,315.10 : 163,972.65 = 97,067.90 : x
  2. Step 2: Convert to fraction form
    109,315.10/163,972.65 = 97,067.90/x
  3. Step 3: Cross multiply
    109,315.10x = 163,972.65 × 97,067.90
  4. Step 4: Simplify right side
    109,315.10x = 15,916,480,792.94
  5. Step 5: Solve for x
    x = 15,916,480,792.94/109,315.10
  6. Step 6: Final answer
    x = 145,601.85

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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.