Home / 215,895.36-323,864.64-66,133.92

Finding the Fourth Proportional to 215,895.36, 323,864.64 and 66,133.92

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Solution

The fourth proportional to 215,895.36, 323,864.64 and 66,133.92 is: 99,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,895.36 : 323,864.64 = 66,133.92 : x
  2. Step 2: Convert to fraction form
    215,895.36/323,864.64 = 66,133.92/x
  3. Step 3: Cross multiply
    215,895.36x = 323,864.64 × 66,133.92
  4. Step 4: Simplify right side
    215,895.36x = 21,418,438,192.59
  5. Step 5: Solve for x
    x = 21,418,438,192.59/215,895.36
  6. Step 6: Final answer
    x = 99,207.50

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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.