Home / 161,427.92-242,142.10-77,168.27

Finding the Fourth Proportional to 161,427.92, 242,142.10 and 77,168.27

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Solution

The fourth proportional to 161,427.92, 242,142.10 and 77,168.27 is: 115,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,427.92 : 242,142.10 = 77,168.27 : x
  2. Step 2: Convert to fraction form
    161,427.92/242,142.10 = 77,168.27/x
  3. Step 3: Cross multiply
    161,427.92x = 242,142.10 × 77,168.27
  4. Step 4: Simplify right side
    161,427.92x = 18,685,687,363.60
  5. Step 5: Solve for x
    x = 18,685,687,363.60/161,427.92
  6. Step 6: Final answer
    x = 115,752.52

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1.5x scale

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.