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Finding the Fourth Proportional to 158,330.58, 218,496.54 and 85,734.27

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Solution

The fourth proportional to 158,330.58, 218,496.54 and 85,734.27 is: 118,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,330.58 : 218,496.54 = 85,734.27 : x
  2. Step 2: Convert to fraction form
    158,330.58/218,496.54 = 85,734.27/x
  3. Step 3: Cross multiply
    158,330.58x = 218,496.54 × 85,734.27
  4. Step 4: Simplify right side
    158,330.58x = 18,732,641,354.43
  5. Step 5: Solve for x
    x = 18,732,641,354.43/158,330.58
  6. Step 6: Final answer
    x = 118,313.48

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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.