Home / 111,626.10-154,041.35-63,876.40

Finding the Fourth Proportional to 111,626.10, 154,041.35 and 63,876.40

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Solution

The fourth proportional to 111,626.10, 154,041.35 and 63,876.40 is: 88,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,626.10 : 154,041.35 = 63,876.40 : x
  2. Step 2: Convert to fraction form
    111,626.10/154,041.35 = 63,876.40/x
  3. Step 3: Cross multiply
    111,626.10x = 154,041.35 × 63,876.40
  4. Step 4: Simplify right side
    111,626.10x = 9,839,606,184.65
  5. Step 5: Solve for x
    x = 9,839,606,184.65/111,626.10
  6. Step 6: Final answer
    x = 88,147.90

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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.