Home / 156,749.67-216,318.81-92,223.45

Finding the Fourth Proportional to 156,749.67, 216,318.81 and 92,223.45

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Solution

The fourth proportional to 156,749.67, 216,318.81 and 92,223.45 is: 127,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,749.67 : 216,318.81 = 92,223.45 : x
  2. Step 2: Convert to fraction form
    156,749.67/216,318.81 = 92,223.45/x
  3. Step 3: Cross multiply
    156,749.67x = 216,318.81 × 92,223.45
  4. Step 4: Simplify right side
    156,749.67x = 19,949,666,958.09
  5. Step 5: Solve for x
    x = 19,949,666,958.09/156,749.67
  6. Step 6: Final answer
    x = 127,270.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.