Home / 115,204.96-172,831.56-48,645.28

Finding the Fourth Proportional to 115,204.96, 172,831.56 and 48,645.28

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Solution

The fourth proportional to 115,204.96, 172,831.56 and 48,645.28 is: 72,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,204.96 : 172,831.56 = 48,645.28 : x
  2. Step 2: Convert to fraction form
    115,204.96/172,831.56 = 48,645.28/x
  3. Step 3: Cross multiply
    115,204.96x = 172,831.56 × 48,645.28
  4. Step 4: Simplify right side
    115,204.96x = 8,407,439,629.04
  5. Step 5: Solve for x
    x = 8,407,439,629.04/115,204.96
  6. Step 6: Final answer
    x = 72,978.10

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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.