Home / 115,329.36-159,150.32-64,341.28

Finding the Fourth Proportional to 115,329.36, 159,150.32 and 64,341.28

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Solution

The fourth proportional to 115,329.36, 159,150.32 and 64,341.28 is: 88,788.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,329.36 : 159,150.32 = 64,341.28 : x
  2. Step 2: Convert to fraction form
    115,329.36/159,150.32 = 64,341.28/x
  3. Step 3: Cross multiply
    115,329.36x = 159,150.32 × 64,341.28
  4. Step 4: Simplify right side
    115,329.36x = 10,239,935,301.21
  5. Step 5: Solve for x
    x = 10,239,935,301.21/115,329.36
  6. Step 6: Final answer
    x = 88,788.63

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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.