Home / 107,825.60-161,738.40-70,500.80

Finding the Fourth Proportional to 107,825.60, 161,738.40 and 70,500.80

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Solution

The fourth proportional to 107,825.60, 161,738.40 and 70,500.80 is: 105,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,825.60 : 161,738.40 = 70,500.80 : x
  2. Step 2: Convert to fraction form
    107,825.60/161,738.40 = 70,500.80/x
  3. Step 3: Cross multiply
    107,825.60x = 161,738.40 × 70,500.80
  4. Step 4: Simplify right side
    107,825.60x = 11,402,686,590.72
  5. Step 5: Solve for x
    x = 11,402,686,590.72/107,825.60
  6. Step 6: Final answer
    x = 105,751.20

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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.