Home / 111,964.48-154,505.28-61,653.76

Finding the Fourth Proportional to 111,964.48, 154,505.28 and 61,653.76

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Solution

The fourth proportional to 111,964.48, 154,505.28 and 61,653.76 is: 85,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,964.48 : 154,505.28 = 61,653.76 : x
  2. Step 2: Convert to fraction form
    111,964.48/154,505.28 = 61,653.76/x
  3. Step 3: Cross multiply
    111,964.48x = 154,505.28 × 61,653.76
  4. Step 4: Simplify right side
    111,964.48x = 9,525,831,451.85
  5. Step 5: Solve for x
    x = 9,525,831,451.85/111,964.48
  6. Step 6: Final answer
    x = 85,079.05

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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.