Home / 152,405.70-228,608.55-89,420.10

Finding the Fourth Proportional to 152,405.70, 228,608.55 and 89,420.10

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Solution

The fourth proportional to 152,405.70, 228,608.55 and 89,420.10 is: 134,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,405.70 : 228,608.55 = 89,420.10 : x
  2. Step 2: Convert to fraction form
    152,405.70/228,608.55 = 89,420.10/x
  3. Step 3: Cross multiply
    152,405.70x = 228,608.55 × 89,420.10
  4. Step 4: Simplify right side
    152,405.70x = 20,442,199,401.86
  5. Step 5: Solve for x
    x = 20,442,199,401.86/152,405.70
  6. Step 6: Final answer
    x = 134,130.15

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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.