Home / 152,655.60-228,983.40-128,161.20

Finding the Fourth Proportional to 152,655.60, 228,983.40 and 128,161.20

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Solution

The fourth proportional to 152,655.60, 228,983.40 and 128,161.20 is: 192,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,655.60 : 228,983.40 = 128,161.20 : x
  2. Step 2: Convert to fraction form
    152,655.60/228,983.40 = 128,161.20/x
  3. Step 3: Cross multiply
    152,655.60x = 228,983.40 × 128,161.20
  4. Step 4: Simplify right side
    152,655.60x = 29,346,787,324.08
  5. Step 5: Solve for x
    x = 29,346,787,324.08/152,655.60
  6. Step 6: Final answer
    x = 192,241.80

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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.