Home / 97,430.90-146,255.70-75,342.20

Finding the Fourth Proportional to 97,430.90, 146,255.70 and 75,342.20

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Solution

The fourth proportional to 97,430.90, 146,255.70 and 75,342.20 is: 113,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,430.90 : 146,255.70 = 75,342.20 : x
  2. Step 2: Convert to fraction form
    97,430.90/146,255.70 = 75,342.20/x
  3. Step 3: Cross multiply
    97,430.90x = 146,255.70 × 75,342.20
  4. Step 4: Simplify right side
    97,430.90x = 11,019,226,200.54
  5. Step 5: Solve for x
    x = 11,019,226,200.54/97,430.90
  6. Step 6: Final answer
    x = 113,097.86

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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.