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Finding the Fourth Proportional to 162,089.40, 243,134.16 and 43,760.64

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Solution

The fourth proportional to 162,089.40, 243,134.16 and 43,760.64 is: 65,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,089.40 : 243,134.16 = 43,760.64 : x
  2. Step 2: Convert to fraction form
    162,089.40/243,134.16 = 43,760.64/x
  3. Step 3: Cross multiply
    162,089.40x = 243,134.16 × 43,760.64
  4. Step 4: Simplify right side
    162,089.40x = 10,639,706,447.46
  5. Step 5: Solve for x
    x = 10,639,706,447.46/162,089.40
  6. Step 6: Final answer
    x = 65,640.98

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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.