Home / 128,767.28-193,103.60-44,505.84

Finding the Fourth Proportional to 128,767.28, 193,103.60 and 44,505.84

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Solution

The fourth proportional to 128,767.28, 193,103.60 and 44,505.84 is: 66,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,767.28 : 193,103.60 = 44,505.84 : x
  2. Step 2: Convert to fraction form
    128,767.28/193,103.60 = 44,505.84/x
  3. Step 3: Cross multiply
    128,767.28x = 193,103.60 × 44,505.84
  4. Step 4: Simplify right side
    128,767.28x = 8,594,237,925.02
  5. Step 5: Solve for x
    x = 8,594,237,925.02/128,767.28
  6. Step 6: Final answer
    x = 66,742.40

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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.