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Finding the Fourth Proportional to 150,000.60, 225,000.90 and 86,928.60

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Solution

The fourth proportional to 150,000.60, 225,000.90 and 86,928.60 is: 130,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,000.60 : 225,000.90 = 86,928.60 : x
  2. Step 2: Convert to fraction form
    150,000.60/225,000.90 = 86,928.60/x
  3. Step 3: Cross multiply
    150,000.60x = 225,000.90 × 86,928.60
  4. Step 4: Simplify right side
    150,000.60x = 19,559,013,235.74
  5. Step 5: Solve for x
    x = 19,559,013,235.74/150,000.60
  6. Step 6: Final answer
    x = 130,392.90

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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.