Home / 106,390.06-146,878.24-70,628.96

Finding the Fourth Proportional to 106,390.06, 146,878.24 and 70,628.96

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Solution

The fourth proportional to 106,390.06, 146,878.24 and 70,628.96 is: 97,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,390.06 : 146,878.24 = 70,628.96 : x
  2. Step 2: Convert to fraction form
    106,390.06/146,878.24 = 70,628.96/x
  3. Step 3: Cross multiply
    106,390.06x = 146,878.24 × 70,628.96
  4. Step 4: Simplify right side
    106,390.06x = 10,373,857,337.83
  5. Step 5: Solve for x
    x = 10,373,857,337.83/106,390.06
  6. Step 6: Final answer
    x = 97,507.77

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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.