Home / 157,291.20-217,054.44-85,671

Finding the Fourth Proportional to 157,291.20, 217,054.44 and 85,671

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Solution

The fourth proportional to 157,291.20, 217,054.44 and 85,671 is: 118,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,291.20 : 217,054.44 = 85,671 : x
  2. Step 2: Convert to fraction form
    157,291.20/217,054.44 = 85,671/x
  3. Step 3: Cross multiply
    157,291.20x = 217,054.44 × 85,671
  4. Step 4: Simplify right side
    157,291.20x = 18,595,270,929.24
  5. Step 5: Solve for x
    x = 18,595,270,929.24/157,291.20
  6. Step 6: Final answer
    x = 118,221.94

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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.