Home / 161,434.40-242,151.19-76,938.44

Finding the Fourth Proportional to 161,434.40, 242,151.19 and 76,938.44

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Solution

The fourth proportional to 161,434.40, 242,151.19 and 76,938.44 is: 115,407.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,434.40 : 242,151.19 = 76,938.44 : x
  2. Step 2: Convert to fraction form
    161,434.40/242,151.19 = 76,938.44/x
  3. Step 3: Cross multiply
    161,434.40x = 242,151.19 × 76,938.44
  4. Step 4: Simplify right side
    161,434.40x = 18,630,733,399.64
  5. Step 5: Solve for x
    x = 18,630,733,399.64/161,434.40
  6. Step 6: Final answer
    x = 115,407.46

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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.