Home / 152,512.80-228,769.20-122,988.30

Finding the Fourth Proportional to 152,512.80, 228,769.20 and 122,988.30

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Solution

The fourth proportional to 152,512.80, 228,769.20 and 122,988.30 is: 184,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,512.80 : 228,769.20 = 122,988.30 : x
  2. Step 2: Convert to fraction form
    152,512.80/228,769.20 = 122,988.30/x
  3. Step 3: Cross multiply
    152,512.80x = 228,769.20 × 122,988.30
  4. Step 4: Simplify right side
    152,512.80x = 28,135,935,000.36
  5. Step 5: Solve for x
    x = 28,135,935,000.36/152,512.80
  6. Step 6: Final answer
    x = 184,482.45

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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.