Home / 217,343.12-299,916.27-121,836.83

Finding the Fourth Proportional to 217,343.12, 299,916.27 and 121,836.83

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Solution

The fourth proportional to 217,343.12, 299,916.27 and 121,836.83 is: 168,125.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,343.12 : 299,916.27 = 121,836.83 : x
  2. Step 2: Convert to fraction form
    217,343.12/299,916.27 = 121,836.83/x
  3. Step 3: Cross multiply
    217,343.12x = 299,916.27 × 121,836.83
  4. Step 4: Simplify right side
    217,343.12x = 36,540,846,102.64
  5. Step 5: Solve for x
    x = 36,540,846,102.64/217,343.12
  6. Step 6: Final answer
    x = 168,125.16

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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.