Home / 117,486.28-162,215.32-72,224.94

Finding the Fourth Proportional to 117,486.28, 162,215.32 and 72,224.94

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Solution

The fourth proportional to 117,486.28, 162,215.32 and 72,224.94 is: 99,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,486.28 : 162,215.32 = 72,224.94 : x
  2. Step 2: Convert to fraction form
    117,486.28/162,215.32 = 72,224.94/x
  3. Step 3: Cross multiply
    117,486.28x = 162,215.32 × 72,224.94
  4. Step 4: Simplify right side
    117,486.28x = 11,715,991,754.08
  5. Step 5: Solve for x
    x = 11,715,991,754.08/117,486.28
  6. Step 6: Final answer
    x = 99,722.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.