Home / 115,859.39-159,881.52-64,867.35

Finding the Fourth Proportional to 115,859.39, 159,881.52 and 64,867.35

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Solution

The fourth proportional to 115,859.39, 159,881.52 and 64,867.35 is: 89,514.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,859.39 : 159,881.52 = 64,867.35 : x
  2. Step 2: Convert to fraction form
    115,859.39/159,881.52 = 64,867.35/x
  3. Step 3: Cross multiply
    115,859.39x = 159,881.52 × 64,867.35
  4. Step 4: Simplify right side
    115,859.39x = 10,371,090,516.37
  5. Step 5: Solve for x
    x = 10,371,090,516.37/115,859.39
  6. Step 6: Final answer
    x = 89,514.46

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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.