Home / 107,438.48-148,269.32-73,518.12

Finding the Fourth Proportional to 107,438.48, 148,269.32 and 73,518.12

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Solution

The fourth proportional to 107,438.48, 148,269.32 and 73,518.12 is: 101,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,438.48 : 148,269.32 = 73,518.12 : x
  2. Step 2: Convert to fraction form
    107,438.48/148,269.32 = 73,518.12/x
  3. Step 3: Cross multiply
    107,438.48x = 148,269.32 × 73,518.12
  4. Step 4: Simplify right side
    107,438.48x = 10,900,481,660.08
  5. Step 5: Solve for x
    x = 10,900,481,660.08/107,438.48
  6. Step 6: Final answer
    x = 101,457.89

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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.