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Finding the Fourth Proportional to 162,516.70, 243,677.85 and 83,784.70

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Solution

The fourth proportional to 162,516.70, 243,677.85 and 83,784.70 is: 125,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,516.70 : 243,677.85 = 83,784.70 : x
  2. Step 2: Convert to fraction form
    162,516.70/243,677.85 = 83,784.70/x
  3. Step 3: Cross multiply
    162,516.70x = 243,677.85 × 83,784.70
  4. Step 4: Simplify right side
    162,516.70x = 20,416,475,558.90
  5. Step 5: Solve for x
    x = 20,416,475,558.90/162,516.70
  6. Step 6: Final answer
    x = 125,626.94

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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.