Home / 97,905.40-146,742.90-51,134.20

Finding the Fourth Proportional to 97,905.40, 146,742.90 and 51,134.20

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Solution

The fourth proportional to 97,905.40, 146,742.90 and 51,134.20 is: 76,641.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,905.40 : 146,742.90 = 51,134.20 : x
  2. Step 2: Convert to fraction form
    97,905.40/146,742.90 = 51,134.20/x
  3. Step 3: Cross multiply
    97,905.40x = 146,742.90 × 51,134.20
  4. Step 4: Simplify right side
    97,905.40x = 7,503,580,797.18
  5. Step 5: Solve for x
    x = 7,503,580,797.18/97,905.40
  6. Step 6: Final answer
    x = 76,641.13

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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.