Home / 99,122.91-136,789.73-53,800.89

Finding the Fourth Proportional to 99,122.91, 136,789.73 and 53,800.89

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Solution

The fourth proportional to 99,122.91, 136,789.73 and 53,800.89 is: 74,245.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,122.91 : 136,789.73 = 53,800.89 : x
  2. Step 2: Convert to fraction form
    99,122.91/136,789.73 = 53,800.89/x
  3. Step 3: Cross multiply
    99,122.91x = 136,789.73 × 53,800.89
  4. Step 4: Simplify right side
    99,122.91x = 7,359,409,216.86
  5. Step 5: Solve for x
    x = 7,359,409,216.86/99,122.91
  6. Step 6: Final answer
    x = 74,245.29

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1.5x scale

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.