Home / 124,977.24-172,289.16-89,105.00

Finding the Fourth Proportional to 124,977.24, 172,289.16 and 89,105.00

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Solution

The fourth proportional to 124,977.24, 172,289.16 and 89,105.00 is: 122,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,977.24 : 172,289.16 = 89,105.00 : x
  2. Step 2: Convert to fraction form
    124,977.24/172,289.16 = 89,105.00/x
  3. Step 3: Cross multiply
    124,977.24x = 172,289.16 × 89,105.00
  4. Step 4: Simplify right side
    124,977.24x = 15,351,824,740.35
  5. Step 5: Solve for x
    x = 15,351,824,740.35/124,977.24
  6. Step 6: Final answer
    x = 122,836.96

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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.