Home / 106,905.89-147,520.10-63,876.81

Finding the Fourth Proportional to 106,905.89, 147,520.10 and 63,876.81

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Solution

The fourth proportional to 106,905.89, 147,520.10 and 63,876.81 is: 88,144.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,905.89 : 147,520.10 = 63,876.81 : x
  2. Step 2: Convert to fraction form
    106,905.89/147,520.10 = 63,876.81/x
  3. Step 3: Cross multiply
    106,905.89x = 147,520.10 × 63,876.81
  4. Step 4: Simplify right side
    106,905.89x = 9,423,113,398.88
  5. Step 5: Solve for x
    x = 9,423,113,398.88/106,905.89
  6. Step 6: Final answer
    x = 88,144.01

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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.