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Finding the Fourth Proportional to 115,164.99, 172,248.12 and 67,667.00

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Solution

The fourth proportional to 115,164.99, 172,248.12 and 67,667.00 is: 101,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,164.99 : 172,248.12 = 67,667.00 : x
  2. Step 2: Convert to fraction form
    115,164.99/172,248.12 = 67,667.00/x
  3. Step 3: Cross multiply
    115,164.99x = 172,248.12 × 67,667.00
  4. Step 4: Simplify right side
    115,164.99x = 11,655,512,674.80
  5. Step 5: Solve for x
    x = 11,655,512,674.80/115,164.99
  6. Step 6: Final answer
    x = 101,207.08

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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.