Home / 157,945.50-217,964.39-86,326.02

Finding the Fourth Proportional to 157,945.50, 217,964.39 and 86,326.02

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Solution

The fourth proportional to 157,945.50, 217,964.39 and 86,326.02 is: 119,129.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,945.50 : 217,964.39 = 86,326.02 : x
  2. Step 2: Convert to fraction form
    157,945.50/217,964.39 = 86,326.02/x
  3. Step 3: Cross multiply
    157,945.50x = 217,964.39 × 86,326.02
  4. Step 4: Simplify right side
    157,945.50x = 18,815,997,858.80
  5. Step 5: Solve for x
    x = 18,815,997,858.80/157,945.50
  6. Step 6: Final answer
    x = 119,129.69

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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.