Home / 105,015.60-157,523.40-103,633.20

Finding the Fourth Proportional to 105,015.60, 157,523.40 and 103,633.20

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Solution

The fourth proportional to 105,015.60, 157,523.40 and 103,633.20 is: 155,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,015.60 : 157,523.40 = 103,633.20 : x
  2. Step 2: Convert to fraction form
    105,015.60/157,523.40 = 103,633.20/x
  3. Step 3: Cross multiply
    105,015.60x = 157,523.40 × 103,633.20
  4. Step 4: Simplify right side
    105,015.60x = 16,324,654,016.88
  5. Step 5: Solve for x
    x = 16,324,654,016.88/105,015.60
  6. Step 6: Final answer
    x = 155,449.80

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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.