Home / 103,785.32-143,197.38-63,484.36

Finding the Fourth Proportional to 103,785.32, 143,197.38 and 63,484.36

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Solution

The fourth proportional to 103,785.32, 143,197.38 and 63,484.36 is: 87,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,785.32 : 143,197.38 = 63,484.36 : x
  2. Step 2: Convert to fraction form
    103,785.32/143,197.38 = 63,484.36/x
  3. Step 3: Cross multiply
    103,785.32x = 143,197.38 × 63,484.36
  4. Step 4: Simplify right side
    103,785.32x = 9,090,794,022.98
  5. Step 5: Solve for x
    x = 9,090,794,022.98/103,785.32
  6. Step 6: Final answer
    x = 87,592.29

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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.