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Finding the Fourth Proportional to 119,722.69, 165,218.59 and 66,009.63

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Solution

The fourth proportional to 119,722.69, 165,218.59 and 66,009.63 is: 91,094.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,722.69 : 165,218.59 = 66,009.63 : x
  2. Step 2: Convert to fraction form
    119,722.69/165,218.59 = 66,009.63/x
  3. Step 3: Cross multiply
    119,722.69x = 165,218.59 × 66,009.63
  4. Step 4: Simplify right side
    119,722.69x = 10,906,018,882.76
  5. Step 5: Solve for x
    x = 10,906,018,882.76/119,722.69
  6. Step 6: Final answer
    x = 91,094.00

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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.