Home / 199,521.28-299,123.34-115,186.06

Finding the Fourth Proportional to 199,521.28, 299,123.34 and 115,186.06

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Solution

The fourth proportional to 199,521.28, 299,123.34 and 115,186.06 is: 172,687.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,521.28 : 299,123.34 = 115,186.06 : x
  2. Step 2: Convert to fraction form
    199,521.28/299,123.34 = 115,186.06/x
  3. Step 3: Cross multiply
    199,521.28x = 299,123.34 × 115,186.06
  4. Step 4: Simplify right side
    199,521.28x = 34,454,838,988.64
  5. Step 5: Solve for x
    x = 34,454,838,988.64/199,521.28
  6. Step 6: Final answer
    x = 172,687.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.