Home / 171,545.28-236,739.72-99,913.92

Finding the Fourth Proportional to 171,545.28, 236,739.72 and 99,913.92

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Solution

The fourth proportional to 171,545.28, 236,739.72 and 99,913.92 is: 137,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,545.28 : 236,739.72 = 99,913.92 : x
  2. Step 2: Convert to fraction form
    171,545.28/236,739.72 = 99,913.92/x
  3. Step 3: Cross multiply
    171,545.28x = 236,739.72 × 99,913.92
  4. Step 4: Simplify right side
    171,545.28x = 23,653,593,444.90
  5. Step 5: Solve for x
    x = 23,653,593,444.90/171,545.28
  6. Step 6: Final answer
    x = 137,885.42

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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.