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Finding the Fourth Proportional to 162,362, 243,598.44 and 87,489.92

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Solution

The fourth proportional to 162,362, 243,598.44 and 87,489.92 is: 131,264.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,362 : 243,598.44 = 87,489.92 : x
  2. Step 2: Convert to fraction form
    162,362/243,598.44 = 87,489.92/x
  3. Step 3: Cross multiply
    162,362x = 243,598.44 × 87,489.92
  4. Step 4: Simplify right side
    162,362x = 21,312,408,027.72
  5. Step 5: Solve for x
    x = 21,312,408,027.72/162,362
  6. Step 6: Final answer
    x = 131,264.75

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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.