Home / 156,731.36-216,289.44-88,747.52

Finding the Fourth Proportional to 156,731.36, 216,289.44 and 88,747.52

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Solution

The fourth proportional to 156,731.36, 216,289.44 and 88,747.52 is: 122,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,731.36 : 216,289.44 = 88,747.52 : x
  2. Step 2: Convert to fraction form
    156,731.36/216,289.44 = 88,747.52/x
  3. Step 3: Cross multiply
    156,731.36x = 216,289.44 × 88,747.52
  4. Step 4: Simplify right side
    156,731.36x = 19,195,151,402.19
  5. Step 5: Solve for x
    x = 19,195,151,402.19/156,731.36
  6. Step 6: Final answer
    x = 122,471.67

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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.