Home / 106,815.38-147,371.93-71,011.46

Finding the Fourth Proportional to 106,815.38, 147,371.93 and 71,011.46

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Solution

The fourth proportional to 106,815.38, 147,371.93 and 71,011.46 is: 97,973.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,815.38 : 147,371.93 = 71,011.46 : x
  2. Step 2: Convert to fraction form
    106,815.38/147,371.93 = 71,011.46/x
  3. Step 3: Cross multiply
    106,815.38x = 147,371.93 × 71,011.46
  4. Step 4: Simplify right side
    106,815.38x = 10,465,095,912.32
  5. Step 5: Solve for x
    x = 10,465,095,912.32/106,815.38
  6. Step 6: Final answer
    x = 97,973.68

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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.