Home / 106,845.43-147,385.12-68,011.45

Finding the Fourth Proportional to 106,845.43, 147,385.12 and 68,011.45

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Solution

The fourth proportional to 106,845.43, 147,385.12 and 68,011.45 is: 93,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,845.43 : 147,385.12 = 68,011.45 : x
  2. Step 2: Convert to fraction form
    106,845.43/147,385.12 = 68,011.45/x
  3. Step 3: Cross multiply
    106,845.43x = 147,385.12 × 68,011.45
  4. Step 4: Simplify right side
    106,845.43x = 10,023,875,308.65
  5. Step 5: Solve for x
    x = 10,023,875,308.65/106,845.43
  6. Step 6: Final answer
    x = 93,816.60

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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.