Home / 97,945.60-146,918.40-92,620.80

Finding the Fourth Proportional to 97,945.60, 146,918.40 and 92,620.80

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Solution

The fourth proportional to 97,945.60, 146,918.40 and 92,620.80 is: 138,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,945.60 : 146,918.40 = 92,620.80 : x
  2. Step 2: Convert to fraction form
    97,945.60/146,918.40 = 92,620.80/x
  3. Step 3: Cross multiply
    97,945.60x = 146,918.40 × 92,620.80
  4. Step 4: Simplify right side
    97,945.60x = 13,607,699,742.72
  5. Step 5: Solve for x
    x = 13,607,699,742.72/97,945.60
  6. Step 6: Final answer
    x = 138,931.20

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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.