Home / 88,134.48-121,716.36-75,485.52

Finding the Fourth Proportional to 88,134.48, 121,716.36 and 75,485.52

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Solution

The fourth proportional to 88,134.48, 121,716.36 and 75,485.52 is: 104,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,134.48 : 121,716.36 = 75,485.52 : x
  2. Step 2: Convert to fraction form
    88,134.48/121,716.36 = 75,485.52/x
  3. Step 3: Cross multiply
    88,134.48x = 121,716.36 × 75,485.52
  4. Step 4: Simplify right side
    88,134.48x = 9,187,822,727.11
  5. Step 5: Solve for x
    x = 9,187,822,727.11/88,134.48
  6. Step 6: Final answer
    x = 104,247.77

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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.