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Finding the Fourth Proportional to 159,597.68, 220,242.08 and 87,984.36

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Solution

The fourth proportional to 159,597.68, 220,242.08 and 87,984.36 is: 121,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,597.68 : 220,242.08 = 87,984.36 : x
  2. Step 2: Convert to fraction form
    159,597.68/220,242.08 = 87,984.36/x
  3. Step 3: Cross multiply
    159,597.68x = 220,242.08 × 87,984.36
  4. Step 4: Simplify right side
    159,597.68x = 19,377,858,453.87
  5. Step 5: Solve for x
    x = 19,377,858,453.87/159,597.68
  6. Step 6: Final answer
    x = 121,416.92

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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.