Home / 115,502.49-159,391.71-64,516.14

Finding the Fourth Proportional to 115,502.49, 159,391.71 and 64,516.14

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Solution

The fourth proportional to 115,502.49, 159,391.71 and 64,516.14 is: 89,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502.49 : 159,391.71 = 64,516.14 : x
  2. Step 2: Convert to fraction form
    115,502.49/159,391.71 = 64,516.14/x
  3. Step 3: Cross multiply
    115,502.49x = 159,391.71 × 64,516.14
  4. Step 4: Simplify right side
    115,502.49x = 10,283,337,877.20
  5. Step 5: Solve for x
    x = 10,283,337,877.20/115,502.49
  6. Step 6: Final answer
    x = 89,031.31

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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.