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Finding the Fourth Proportional to 133,097.30, 199,645.95 and 66,547.70

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Solution

The fourth proportional to 133,097.30, 199,645.95 and 66,547.70 is: 99,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,097.30 : 199,645.95 = 66,547.70 : x
  2. Step 2: Convert to fraction form
    133,097.30/199,645.95 = 66,547.70/x
  3. Step 3: Cross multiply
    133,097.30x = 199,645.95 × 66,547.70
  4. Step 4: Simplify right side
    133,097.30x = 13,285,978,786.82
  5. Step 5: Solve for x
    x = 13,285,978,786.82/133,097.30
  6. Step 6: Final answer
    x = 99,821.55

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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.