Home / 111,934.40-154,464.99-64,154.66

Finding the Fourth Proportional to 111,934.40, 154,464.99 and 64,154.66

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Solution

The fourth proportional to 111,934.40, 154,464.99 and 64,154.66 is: 88,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,934.40 : 154,464.99 = 64,154.66 : x
  2. Step 2: Convert to fraction form
    111,934.40/154,464.99 = 64,154.66/x
  3. Step 3: Cross multiply
    111,934.40x = 154,464.99 × 64,154.66
  4. Step 4: Simplify right side
    111,934.40x = 9,909,648,915.35
  5. Step 5: Solve for x
    x = 9,909,648,915.35/111,934.40
  6. Step 6: Final answer
    x = 88,530.86

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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.