Home / 99,291.91-136,929.45-76,595.01

Finding the Fourth Proportional to 99,291.91, 136,929.45 and 76,595.01

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Solution

The fourth proportional to 99,291.91, 136,929.45 and 76,595.01 is: 105,629.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291.91 : 136,929.45 = 76,595.01 : x
  2. Step 2: Convert to fraction form
    99,291.91/136,929.45 = 76,595.01/x
  3. Step 3: Cross multiply
    99,291.91x = 136,929.45 × 76,595.01
  4. Step 4: Simplify right side
    99,291.91x = 10,488,112,592.04
  5. Step 5: Solve for x
    x = 10,488,112,592.04/99,291.91
  6. Step 6: Final answer
    x = 105,629.07

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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.