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Finding the Fourth Proportional to 162,115.68, 223,610.40 and 140,858.40

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Solution

The fourth proportional to 162,115.68, 223,610.40 and 140,858.40 is: 194,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,115.68 : 223,610.40 = 140,858.40 : x
  2. Step 2: Convert to fraction form
    162,115.68/223,610.40 = 140,858.40/x
  3. Step 3: Cross multiply
    162,115.68x = 223,610.40 × 140,858.40
  4. Step 4: Simplify right side
    162,115.68x = 31,497,403,167.36
  5. Step 5: Solve for x
    x = 31,497,403,167.36/162,115.68
  6. Step 6: Final answer
    x = 194,289.68

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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.