Home / 111,907.52-154,453.08-64,161.20

Finding the Fourth Proportional to 111,907.52, 154,453.08 and 64,161.20

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Solution

The fourth proportional to 111,907.52, 154,453.08 and 64,161.20 is: 88,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,907.52 : 154,453.08 = 64,161.20 : x
  2. Step 2: Convert to fraction form
    111,907.52/154,453.08 = 64,161.20/x
  3. Step 3: Cross multiply
    111,907.52x = 154,453.08 × 64,161.20
  4. Step 4: Simplify right side
    111,907.52x = 9,909,894,956.50
  5. Step 5: Solve for x
    x = 9,909,894,956.50/111,907.52
  6. Step 6: Final answer
    x = 88,554.33

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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.