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Finding the Fourth Proportional to 103,881.58, 143,324.70 and 63,553.30

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Solution

The fourth proportional to 103,881.58, 143,324.70 and 63,553.30 is: 87,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,881.58 : 143,324.70 = 63,553.30 : x
  2. Step 2: Convert to fraction form
    103,881.58/143,324.70 = 63,553.30/x
  3. Step 3: Cross multiply
    103,881.58x = 143,324.70 × 63,553.30
  4. Step 4: Simplify right side
    103,881.58x = 9,108,757,656.51
  5. Step 5: Solve for x
    x = 9,108,757,656.51/103,881.58
  6. Step 6: Final answer
    x = 87,684.05

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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.