Home / 198,516.91-273,931.09-112,457.45

Finding the Fourth Proportional to 198,516.91, 273,931.09 and 112,457.45

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Solution

The fourth proportional to 198,516.91, 273,931.09 and 112,457.45 is: 155,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,516.91 : 273,931.09 = 112,457.45 : x
  2. Step 2: Convert to fraction form
    198,516.91/273,931.09 = 112,457.45/x
  3. Step 3: Cross multiply
    198,516.91x = 273,931.09 × 112,457.45
  4. Step 4: Simplify right side
    198,516.91x = 30,805,593,306.08
  5. Step 5: Solve for x
    x = 30,805,593,306.08/198,516.91
  6. Step 6: Final answer
    x = 155,178.69

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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.