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Finding the Fourth Proportional to 158,911.04, 219,309 and 98,493.56

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Solution

The fourth proportional to 158,911.04, 219,309 and 98,493.56 is: 135,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,911.04 : 219,309 = 98,493.56 : x
  2. Step 2: Convert to fraction form
    158,911.04/219,309 = 98,493.56/x
  3. Step 3: Cross multiply
    158,911.04x = 219,309 × 98,493.56
  4. Step 4: Simplify right side
    158,911.04x = 21,600,524,150.04
  5. Step 5: Solve for x
    x = 21,600,524,150.04/158,911.04
  6. Step 6: Final answer
    x = 135,928.40

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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.