Home / 107,555.43-148,430.10-59,161.09

Finding the Fourth Proportional to 107,555.43, 148,430.10 and 59,161.09

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Solution

The fourth proportional to 107,555.43, 148,430.10 and 59,161.09 is: 81,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,555.43 : 148,430.10 = 59,161.09 : x
  2. Step 2: Convert to fraction form
    107,555.43/148,430.10 = 59,161.09/x
  3. Step 3: Cross multiply
    107,555.43x = 148,430.10 × 59,161.09
  4. Step 4: Simplify right side
    107,555.43x = 8,781,286,504.81
  5. Step 5: Solve for x
    x = 8,781,286,504.81/107,555.43
  6. Step 6: Final answer
    x = 81,644.29

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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.