Home / 152,419.20-228,628.80-89,433.60

Finding the Fourth Proportional to 152,419.20, 228,628.80 and 89,433.60

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Solution

The fourth proportional to 152,419.20, 228,628.80 and 89,433.60 is: 134,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,419.20 : 228,628.80 = 89,433.60 : x
  2. Step 2: Convert to fraction form
    152,419.20/228,628.80 = 89,433.60/x
  3. Step 3: Cross multiply
    152,419.20x = 228,628.80 × 89,433.60
  4. Step 4: Simplify right side
    152,419.20x = 20,447,096,647.68
  5. Step 5: Solve for x
    x = 20,447,096,647.68/152,419.20
  6. Step 6: Final answer
    x = 134,150.40

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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.