Home / 115,503.10-159,392.57-64,516.54

Finding the Fourth Proportional to 115,503.10, 159,392.57 and 64,516.54

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Solution

The fourth proportional to 115,503.10, 159,392.57 and 64,516.54 is: 89,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,503.10 : 159,392.57 = 64,516.54 : x
  2. Step 2: Convert to fraction form
    115,503.10/159,392.57 = 64,516.54/x
  3. Step 3: Cross multiply
    115,503.10x = 159,392.57 × 64,516.54
  4. Step 4: Simplify right side
    115,503.10x = 10,283,457,118.11
  5. Step 5: Solve for x
    x = 10,283,457,118.11/115,503.10
  6. Step 6: Final answer
    x = 89,031.87

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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.