Home / 215,916.06-297,964.68-120,428.94

Finding the Fourth Proportional to 215,916.06, 297,964.68 and 120,428.94

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Solution

The fourth proportional to 215,916.06, 297,964.68 and 120,428.94 is: 166,192.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,916.06 : 297,964.68 = 120,428.94 : x
  2. Step 2: Convert to fraction form
    215,916.06/297,964.68 = 120,428.94/x
  3. Step 3: Cross multiply
    215,916.06x = 297,964.68 × 120,428.94
  4. Step 4: Simplify right side
    215,916.06x = 35,883,570,569.84
  5. Step 5: Solve for x
    x = 35,883,570,569.84/215,916.06
  6. Step 6: Final answer
    x = 166,192.23

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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.