Home / 156,768.81-235,157.67-38,440.05

Finding the Fourth Proportional to 156,768.81, 235,157.67 and 38,440.05

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Solution

The fourth proportional to 156,768.81, 235,157.67 and 38,440.05 is: 57,661.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,768.81 : 235,157.67 = 38,440.05 : x
  2. Step 2: Convert to fraction form
    156,768.81/235,157.67 = 38,440.05/x
  3. Step 3: Cross multiply
    156,768.81x = 235,157.67 × 38,440.05
  4. Step 4: Simplify right side
    156,768.81x = 9,039,472,592.68
  5. Step 5: Solve for x
    x = 9,039,472,592.68/156,768.81
  6. Step 6: Final answer
    x = 57,661.17

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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.