Home / 119,402.52-164,771.40-65,687.05

Finding the Fourth Proportional to 119,402.52, 164,771.40 and 65,687.05

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Solution

The fourth proportional to 119,402.52, 164,771.40 and 65,687.05 is: 90,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,402.52 : 164,771.40 = 65,687.05 : x
  2. Step 2: Convert to fraction form
    119,402.52/164,771.40 = 65,687.05/x
  3. Step 3: Cross multiply
    119,402.52x = 164,771.40 × 65,687.05
  4. Step 4: Simplify right side
    119,402.52x = 10,823,347,190.37
  5. Step 5: Solve for x
    x = 10,823,347,190.37/119,402.52
  6. Step 6: Final answer
    x = 90,645.89

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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.