Home / 152,031.20-228,046.80-89,045.60

Finding the Fourth Proportional to 152,031.20, 228,046.80 and 89,045.60

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Solution

The fourth proportional to 152,031.20, 228,046.80 and 89,045.60 is: 133,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,031.20 : 228,046.80 = 89,045.60 : x
  2. Step 2: Convert to fraction form
    152,031.20/228,046.80 = 89,045.60/x
  3. Step 3: Cross multiply
    152,031.20x = 228,046.80 × 89,045.60
  4. Step 4: Simplify right side
    152,031.20x = 20,306,564,134.08
  5. Step 5: Solve for x
    x = 20,306,564,134.08/152,031.20
  6. Step 6: Final answer
    x = 133,568.40

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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.