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Finding the Fourth Proportional to 162,355.99, 243,538.17 and 76,946.92

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Solution

The fourth proportional to 162,355.99, 243,538.17 and 76,946.92 is: 115,422.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,355.99 : 243,538.17 = 76,946.92 : x
  2. Step 2: Convert to fraction form
    162,355.99/243,538.17 = 76,946.92/x
  3. Step 3: Cross multiply
    162,355.99x = 243,538.17 × 76,946.92
  4. Step 4: Simplify right side
    162,355.99x = 18,739,512,083.94
  5. Step 5: Solve for x
    x = 18,739,512,083.94/162,355.99
  6. Step 6: Final answer
    x = 115,422.36

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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.