Home / 107,854.20-161,781.30-70,529.40

Finding the Fourth Proportional to 107,854.20, 161,781.30 and 70,529.40

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Solution

The fourth proportional to 107,854.20, 161,781.30 and 70,529.40 is: 105,794.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,854.20 : 161,781.30 = 70,529.40 : x
  2. Step 2: Convert to fraction form
    107,854.20/161,781.30 = 70,529.40/x
  3. Step 3: Cross multiply
    107,854.20x = 161,781.30 × 70,529.40
  4. Step 4: Simplify right side
    107,854.20x = 11,410,338,020.22
  5. Step 5: Solve for x
    x = 11,410,338,020.22/107,854.20
  6. Step 6: Final answer
    x = 105,794.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.