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Finding the Fourth Proportional to 99,460.28, 137,271.84 and 63,648.56

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Solution

The fourth proportional to 99,460.28, 137,271.84 and 63,648.56 is: 87,845.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,460.28 : 137,271.84 = 63,648.56 : x
  2. Step 2: Convert to fraction form
    99,460.28/137,271.84 = 63,648.56/x
  3. Step 3: Cross multiply
    99,460.28x = 137,271.84 × 63,648.56
  4. Step 4: Simplify right side
    99,460.28x = 8,737,154,944.55
  5. Step 5: Solve for x
    x = 8,737,154,944.55/99,460.28
  6. Step 6: Final answer
    x = 87,845.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.