Home / 97,749.60-146,278.80-89,455.20

Finding the Fourth Proportional to 97,749.60, 146,278.80 and 89,455.20

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Solution

The fourth proportional to 97,749.60, 146,278.80 and 89,455.20 is: 133,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,749.60 : 146,278.80 = 89,455.20 : x
  2. Step 2: Convert to fraction form
    97,749.60/146,278.80 = 89,455.20/x
  3. Step 3: Cross multiply
    97,749.60x = 146,278.80 × 89,455.20
  4. Step 4: Simplify right side
    97,749.60x = 13,085,399,309.76
  5. Step 5: Solve for x
    x = 13,085,399,309.76/97,749.60
  6. Step 6: Final answer
    x = 133,866.53

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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.