Home / 161,720.60-242,120.10-157,112.60

Finding the Fourth Proportional to 161,720.60, 242,120.10 and 157,112.60

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Solution

The fourth proportional to 161,720.60, 242,120.10 and 157,112.60 is: 235,221.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,720.60 : 242,120.10 = 157,112.60 : x
  2. Step 2: Convert to fraction form
    161,720.60/242,120.10 = 157,112.60/x
  3. Step 3: Cross multiply
    161,720.60x = 242,120.10 × 157,112.60
  4. Step 4: Simplify right side
    161,720.60x = 38,040,118,423.26
  5. Step 5: Solve for x
    x = 38,040,118,423.26/161,720.60
  6. Step 6: Final answer
    x = 235,221.23

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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.