Home / 156,769.56-235,158.81-38,440.80

Finding the Fourth Proportional to 156,769.56, 235,158.81 and 38,440.80

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Solution

The fourth proportional to 156,769.56, 235,158.81 and 38,440.80 is: 57,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769.56 : 235,158.81 = 38,440.80 : x
  2. Step 2: Convert to fraction form
    156,769.56/235,158.81 = 38,440.80/x
  3. Step 3: Cross multiply
    156,769.56x = 235,158.81 × 38,440.80
  4. Step 4: Simplify right side
    156,769.56x = 9,039,692,783.45
  5. Step 5: Solve for x
    x = 9,039,692,783.45/156,769.56
  6. Step 6: Final answer
    x = 57,662.30

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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.