Home / 97,688.38-146,530.96-31,127.60

Finding the Fourth Proportional to 97,688.38, 146,530.96 and 31,127.60

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Solution

The fourth proportional to 97,688.38, 146,530.96 and 31,127.60 is: 46,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,688.38 : 146,530.96 = 31,127.60 : x
  2. Step 2: Convert to fraction form
    97,688.38/146,530.96 = 31,127.60/x
  3. Step 3: Cross multiply
    97,688.38x = 146,530.96 × 31,127.60
  4. Step 4: Simplify right side
    97,688.38x = 4,561,157,110.50
  5. Step 5: Solve for x
    x = 4,561,157,110.50/97,688.38
  6. Step 6: Final answer
    x = 46,690.89

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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.