Home / 156,811.70-216,384.53-88,815.11

Finding the Fourth Proportional to 156,811.70, 216,384.53 and 88,815.11

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Solution

The fourth proportional to 156,811.70, 216,384.53 and 88,815.11 is: 122,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,811.70 : 216,384.53 = 88,815.11 : x
  2. Step 2: Convert to fraction form
    156,811.70/216,384.53 = 88,815.11/x
  3. Step 3: Cross multiply
    156,811.70x = 216,384.53 × 88,815.11
  4. Step 4: Simplify right side
    156,811.70x = 19,218,214,308.25
  5. Step 5: Solve for x
    x = 19,218,214,308.25/156,811.70
  6. Step 6: Final answer
    x = 122,556.00

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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.