Home / 99,256.32-148,423.68-76,815.36

Finding the Fourth Proportional to 99,256.32, 148,423.68 and 76,815.36

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Solution

The fourth proportional to 99,256.32, 148,423.68 and 76,815.36 is: 114,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,256.32 : 148,423.68 = 76,815.36 : x
  2. Step 2: Convert to fraction form
    99,256.32/148,423.68 = 76,815.36/x
  3. Step 3: Cross multiply
    99,256.32x = 148,423.68 × 76,815.36
  4. Step 4: Simplify right side
    99,256.32x = 11,401,218,411.72
  5. Step 5: Solve for x
    x = 11,401,218,411.72/99,256.32
  6. Step 6: Final answer
    x = 114,866.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.