Home / 117,756.81-162,502.85-64,040.69

Finding the Fourth Proportional to 117,756.81, 162,502.85 and 64,040.69

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Solution

The fourth proportional to 117,756.81, 162,502.85 and 64,040.69 is: 88,375.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,756.81 : 162,502.85 = 64,040.69 : x
  2. Step 2: Convert to fraction form
    117,756.81/162,502.85 = 64,040.69/x
  3. Step 3: Cross multiply
    117,756.81x = 162,502.85 × 64,040.69
  4. Step 4: Simplify right side
    117,756.81x = 10,406,794,640.97
  5. Step 5: Solve for x
    x = 10,406,794,640.97/117,756.81
  6. Step 6: Final answer
    x = 88,375.31

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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.