Home / 110,039.97-151,855.79-64,719.86

Finding the Fourth Proportional to 110,039.97, 151,855.79 and 64,719.86

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Solution

The fourth proportional to 110,039.97, 151,855.79 and 64,719.86 is: 89,313.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,039.97 : 151,855.79 = 64,719.86 : x
  2. Step 2: Convert to fraction form
    110,039.97/151,855.79 = 64,719.86/x
  3. Step 3: Cross multiply
    110,039.97x = 151,855.79 × 64,719.86
  4. Step 4: Simplify right side
    110,039.97x = 9,828,084,386.11
  5. Step 5: Solve for x
    x = 9,828,084,386.11/110,039.97
  6. Step 6: Final answer
    x = 89,313.77

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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.