Home / 138,945.07-191,638.41-119,596.91

Finding the Fourth Proportional to 138,945.07, 191,638.41 and 119,596.91

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Solution

The fourth proportional to 138,945.07, 191,638.41 and 119,596.91 is: 164,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,945.07 : 191,638.41 = 119,596.91 : x
  2. Step 2: Convert to fraction form
    138,945.07/191,638.41 = 119,596.91/x
  3. Step 3: Cross multiply
    138,945.07x = 191,638.41 × 119,596.91
  4. Step 4: Simplify right side
    138,945.07x = 22,919,360,715.12
  5. Step 5: Solve for x
    x = 22,919,360,715.12/138,945.07
  6. Step 6: Final answer
    x = 164,952.68

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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.