Home / 111,857.16-154,328.13-63,451.11

Finding the Fourth Proportional to 111,857.16, 154,328.13 and 63,451.11

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Solution

The fourth proportional to 111,857.16, 154,328.13 and 63,451.11 is: 87,542.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,857.16 : 154,328.13 = 63,451.11 : x
  2. Step 2: Convert to fraction form
    111,857.16/154,328.13 = 63,451.11/x
  3. Step 3: Cross multiply
    111,857.16x = 154,328.13 × 63,451.11
  4. Step 4: Simplify right side
    111,857.16x = 9,792,291,152.72
  5. Step 5: Solve for x
    x = 9,792,291,152.72/111,857.16
  6. Step 6: Final answer
    x = 87,542.82

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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.