Home / 111,592.09-153,959.61-63,187.40

Finding the Fourth Proportional to 111,592.09, 153,959.61 and 63,187.40

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Solution

The fourth proportional to 111,592.09, 153,959.61 and 63,187.40 is: 87,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,592.09 : 153,959.61 = 63,187.40 : x
  2. Step 2: Convert to fraction form
    111,592.09/153,959.61 = 63,187.40/x
  3. Step 3: Cross multiply
    111,592.09x = 153,959.61 × 63,187.40
  4. Step 4: Simplify right side
    111,592.09x = 9,728,307,460.91
  5. Step 5: Solve for x
    x = 9,728,307,460.91/111,592.09
  6. Step 6: Final answer
    x = 87,177.39

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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.