Home / 111,396.08-153,734.72-63,648.40

Finding the Fourth Proportional to 111,396.08, 153,734.72 and 63,648.40

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Solution

The fourth proportional to 111,396.08, 153,734.72 and 63,648.40 is: 87,839.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,396.08 : 153,734.72 = 63,648.40 : x
  2. Step 2: Convert to fraction form
    111,396.08/153,734.72 = 63,648.40/x
  3. Step 3: Cross multiply
    111,396.08x = 153,734.72 × 63,648.40
  4. Step 4: Simplify right side
    111,396.08x = 9,784,968,952.45
  5. Step 5: Solve for x
    x = 9,784,968,952.45/111,396.08
  6. Step 6: Final answer
    x = 87,839.44

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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.