Home / 110,890.11-153,029.82-63,143.65

Finding the Fourth Proportional to 110,890.11, 153,029.82 and 63,143.65

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Solution

The fourth proportional to 110,890.11, 153,029.82 and 63,143.65 is: 87,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,890.11 : 153,029.82 = 63,143.65 : x
  2. Step 2: Convert to fraction form
    110,890.11/153,029.82 = 63,143.65/x
  3. Step 3: Cross multiply
    110,890.11x = 153,029.82 × 63,143.65
  4. Step 4: Simplify right side
    110,890.11x = 9,662,861,393.64
  5. Step 5: Solve for x
    x = 9,662,861,393.64/110,890.11
  6. Step 6: Final answer
    x = 87,139.07

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1.5x scale

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.