Home / 111,531.99-153,903.97-63,784.31

Finding the Fourth Proportional to 111,531.99, 153,903.97 and 63,784.31

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Solution

The fourth proportional to 111,531.99, 153,903.97 and 63,784.31 is: 88,016.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,531.99 : 153,903.97 = 63,784.31 : x
  2. Step 2: Convert to fraction form
    111,531.99/153,903.97 = 63,784.31/x
  3. Step 3: Cross multiply
    111,531.99x = 153,903.97 × 63,784.31
  4. Step 4: Simplify right side
    111,531.99x = 9,816,658,888.02
  5. Step 5: Solve for x
    x = 9,816,658,888.02/111,531.99
  6. Step 6: Final answer
    x = 88,016.53

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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.