Home / 102,236.40-153,578.16-72,843.12

Finding the Fourth Proportional to 102,236.40, 153,578.16 and 72,843.12

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Solution

The fourth proportional to 102,236.40, 153,578.16 and 72,843.12 is: 109,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,236.40 : 153,578.16 = 72,843.12 : x
  2. Step 2: Convert to fraction form
    102,236.40/153,578.16 = 72,843.12/x
  3. Step 3: Cross multiply
    102,236.40x = 153,578.16 × 72,843.12
  4. Step 4: Simplify right side
    102,236.40x = 11,187,112,338.26
  5. Step 5: Solve for x
    x = 11,187,112,338.26/102,236.40
  6. Step 6: Final answer
    x = 109,423.97

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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.