Home / 99,176.05-136,859.95-53,853.20

Finding the Fourth Proportional to 99,176.05, 136,859.95 and 53,853.20

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Solution

The fourth proportional to 99,176.05, 136,859.95 and 53,853.20 is: 74,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,176.05 : 136,859.95 = 53,853.20 : x
  2. Step 2: Convert to fraction form
    99,176.05/136,859.95 = 53,853.20/x
  3. Step 3: Cross multiply
    99,176.05x = 136,859.95 × 53,853.20
  4. Step 4: Simplify right side
    99,176.05x = 7,370,347,076.88
  5. Step 5: Solve for x
    x = 7,370,347,076.88/99,176.05
  6. Step 6: Final answer
    x = 74,315.80

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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.