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Finding the Fourth Proportional to 159,564.77, 220,200.43 and 87,944.79

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Solution

The fourth proportional to 159,564.77, 220,200.43 and 87,944.79 is: 121,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,564.77 : 220,200.43 = 87,944.79 : x
  2. Step 2: Convert to fraction form
    159,564.77/220,200.43 = 87,944.79/x
  3. Step 3: Cross multiply
    159,564.77x = 220,200.43 × 87,944.79
  4. Step 4: Simplify right side
    159,564.77x = 19,365,481,561.71
  5. Step 5: Solve for x
    x = 19,365,481,561.71/159,564.77
  6. Step 6: Final answer
    x = 121,364.39

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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.