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Finding the Fourth Proportional to 235,164.87, 352,746.63 and 85,404.56

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Solution

The fourth proportional to 235,164.87, 352,746.63 and 85,404.56 is: 128,106.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,164.87 : 352,746.63 = 85,404.56 : x
  2. Step 2: Convert to fraction form
    235,164.87/352,746.63 = 85,404.56/x
  3. Step 3: Cross multiply
    235,164.87x = 352,746.63 × 85,404.56
  4. Step 4: Simplify right side
    235,164.87x = 30,126,168,962.90
  5. Step 5: Solve for x
    x = 30,126,168,962.90/235,164.87
  6. Step 6: Final answer
    x = 128,106.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.