Home / 107,623.20-161,434.80-65,632.80

Finding the Fourth Proportional to 107,623.20, 161,434.80 and 65,632.80

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Solution

The fourth proportional to 107,623.20, 161,434.80 and 65,632.80 is: 98,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,623.20 : 161,434.80 = 65,632.80 : x
  2. Step 2: Convert to fraction form
    107,623.20/161,434.80 = 65,632.80/x
  3. Step 3: Cross multiply
    107,623.20x = 161,434.80 × 65,632.80
  4. Step 4: Simplify right side
    107,623.20x = 10,595,417,941.44
  5. Step 5: Solve for x
    x = 10,595,417,941.44/107,623.20
  6. Step 6: Final answer
    x = 98,449.20

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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.