Home / 111,390.18-153,704.28-63,646.62

Finding the Fourth Proportional to 111,390.18, 153,704.28 and 63,646.62

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Solution

The fourth proportional to 111,390.18, 153,704.28 and 63,646.62 is: 87,824.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,390.18 : 153,704.28 = 63,646.62 : x
  2. Step 2: Convert to fraction form
    111,390.18/153,704.28 = 63,646.62/x
  3. Step 3: Cross multiply
    111,390.18x = 153,704.28 × 63,646.62
  4. Step 4: Simplify right side
    111,390.18x = 9,782,757,901.53
  5. Step 5: Solve for x
    x = 9,782,757,901.53/111,390.18
  6. Step 6: Final answer
    x = 87,824.24

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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.