Home / 107,448.40-161,134.36-40,870.80

Finding the Fourth Proportional to 107,448.40, 161,134.36 and 40,870.80

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Solution

The fourth proportional to 107,448.40, 161,134.36 and 40,870.80 is: 61,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,448.40 : 161,134.36 = 40,870.80 : x
  2. Step 2: Convert to fraction form
    107,448.40/161,134.36 = 40,870.80/x
  3. Step 3: Cross multiply
    107,448.40x = 161,134.36 × 40,870.80
  4. Step 4: Simplify right side
    107,448.40x = 6,585,690,200.69
  5. Step 5: Solve for x
    x = 6,585,690,200.69/107,448.40
  6. Step 6: Final answer
    x = 61,291.65

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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.