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Finding the Fourth Proportional to 112,896, 155,800.32 and 73,221.12

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Solution

The fourth proportional to 112,896, 155,800.32 and 73,221.12 is: 101,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,896 : 155,800.32 = 73,221.12 : x
  2. Step 2: Convert to fraction form
    112,896/155,800.32 = 73,221.12/x
  3. Step 3: Cross multiply
    112,896x = 155,800.32 × 73,221.12
  4. Step 4: Simplify right side
    112,896x = 11,407,873,926.76
  5. Step 5: Solve for x
    x = 11,407,873,926.76/112,896
  6. Step 6: Final answer
    x = 101,047.64

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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.