Home / 111,463.48-153,819.18-61,163.32

Finding the Fourth Proportional to 111,463.48, 153,819.18 and 61,163.32

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Solution

The fourth proportional to 111,463.48, 153,819.18 and 61,163.32 is: 84,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,463.48 : 153,819.18 = 61,163.32 : x
  2. Step 2: Convert to fraction form
    111,463.48/153,819.18 = 61,163.32/x
  3. Step 3: Cross multiply
    111,463.48x = 153,819.18 × 61,163.32
  4. Step 4: Simplify right side
    111,463.48x = 9,408,091,728.48
  5. Step 5: Solve for x
    x = 9,408,091,728.48/111,463.48
  6. Step 6: Final answer
    x = 84,405.15

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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.