Home / 156,977.08-216,623.83-89,000.36

Finding the Fourth Proportional to 156,977.08, 216,623.83 and 89,000.36

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Solution

The fourth proportional to 156,977.08, 216,623.83 and 89,000.36 is: 122,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,977.08 : 216,623.83 = 89,000.36 : x
  2. Step 2: Convert to fraction form
    156,977.08/216,623.83 = 89,000.36/x
  3. Step 3: Cross multiply
    156,977.08x = 216,623.83 × 89,000.36
  4. Step 4: Simplify right side
    156,977.08x = 19,279,598,854.58
  5. Step 5: Solve for x
    x = 19,279,598,854.58/156,977.08
  6. Step 6: Final answer
    x = 122,817.93

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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.