Home / 151,930.76-209,663.64-83,952.42

Finding the Fourth Proportional to 151,930.76, 209,663.64 and 83,952.42

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Solution

The fourth proportional to 151,930.76, 209,663.64 and 83,952.42 is: 115,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,930.76 : 209,663.64 = 83,952.42 : x
  2. Step 2: Convert to fraction form
    151,930.76/209,663.64 = 83,952.42/x
  3. Step 3: Cross multiply
    151,930.76x = 209,663.64 × 83,952.42
  4. Step 4: Simplify right side
    151,930.76x = 17,601,769,177.77
  5. Step 5: Solve for x
    x = 17,601,769,177.77/151,930.76
  6. Step 6: Final answer
    x = 115,853.89

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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.