Home / 102,005.12-153,007.41-27,125.28

Finding the Fourth Proportional to 102,005.12, 153,007.41 and 27,125.28

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Solution

The fourth proportional to 102,005.12, 153,007.41 and 27,125.28 is: 40,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,005.12 : 153,007.41 = 27,125.28 : x
  2. Step 2: Convert to fraction form
    102,005.12/153,007.41 = 27,125.28/x
  3. Step 3: Cross multiply
    102,005.12x = 153,007.41 × 27,125.28
  4. Step 4: Simplify right side
    102,005.12x = 4,150,368,940.04
  5. Step 5: Solve for x
    x = 4,150,368,940.04/102,005.12
  6. Step 6: Final answer
    x = 40,687.85

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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.