Home / 111,389.55-153,725.73-63,641.88

Finding the Fourth Proportional to 111,389.55, 153,725.73 and 63,641.88

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Solution

The fourth proportional to 111,389.55, 153,725.73 and 63,641.88 is: 87,830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,389.55 : 153,725.73 = 63,641.88 : x
  2. Step 2: Convert to fraction form
    111,389.55/153,725.73 = 63,641.88/x
  3. Step 3: Cross multiply
    111,389.55x = 153,725.73 × 63,641.88
  4. Step 4: Simplify right side
    111,389.55x = 9,783,393,374.73
  5. Step 5: Solve for x
    x = 9,783,393,374.73/111,389.55
  6. Step 6: Final answer
    x = 87,830.44

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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.