Home / 101,614.04-140,295.81-63,431.72

Finding the Fourth Proportional to 101,614.04, 140,295.81 and 63,431.72

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Solution

The fourth proportional to 101,614.04, 140,295.81 and 63,431.72 is: 87,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,614.04 : 140,295.81 = 63,431.72 : x
  2. Step 2: Convert to fraction form
    101,614.04/140,295.81 = 63,431.72/x
  3. Step 3: Cross multiply
    101,614.04x = 140,295.81 × 63,431.72
  4. Step 4: Simplify right side
    101,614.04x = 8,899,204,537.09
  5. Step 5: Solve for x
    x = 8,899,204,537.09/101,614.04
  6. Step 6: Final answer
    x = 87,578.49

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1.5x scale

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.