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Finding the Fourth Proportional to 162,420.56, 243,644.50 and 59,865.75

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Solution

The fourth proportional to 162,420.56, 243,644.50 and 59,865.75 is: 89,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,420.56 : 243,644.50 = 59,865.75 : x
  2. Step 2: Convert to fraction form
    162,420.56/243,644.50 = 59,865.75/x
  3. Step 3: Cross multiply
    162,420.56x = 243,644.50 × 59,865.75
  4. Step 4: Simplify right side
    162,420.56x = 14,585,960,725.88
  5. Step 5: Solve for x
    x = 14,585,960,725.88/162,420.56
  6. Step 6: Final answer
    x = 89,803.66

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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.