Home / 98,235.28-147,356.70-31,676.50

Finding the Fourth Proportional to 98,235.28, 147,356.70 and 31,676.50

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Solution

The fourth proportional to 98,235.28, 147,356.70 and 31,676.50 is: 47,515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,235.28 : 147,356.70 = 31,676.50 : x
  2. Step 2: Convert to fraction form
    98,235.28/147,356.70 = 31,676.50/x
  3. Step 3: Cross multiply
    98,235.28x = 147,356.70 × 31,676.50
  4. Step 4: Simplify right side
    98,235.28x = 4,667,744,507.55
  5. Step 5: Solve for x
    x = 4,667,744,507.55/98,235.28
  6. Step 6: Final answer
    x = 47,515.97

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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.