Home / 111,645.48-154,032.66-69,188.52

Finding the Fourth Proportional to 111,645.48, 154,032.66 and 69,188.52

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Solution

The fourth proportional to 111,645.48, 154,032.66 and 69,188.52 is: 95,456.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,645.48 : 154,032.66 = 69,188.52 : x
  2. Step 2: Convert to fraction form
    111,645.48/154,032.66 = 69,188.52/x
  3. Step 3: Cross multiply
    111,645.48x = 154,032.66 × 69,188.52
  4. Step 4: Simplify right side
    111,645.48x = 10,657,291,777.06
  5. Step 5: Solve for x
    x = 10,657,291,777.06/111,645.48
  6. Step 6: Final answer
    x = 95,456.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.