Home / 143,822.70-215,734.05-91,464.30

Finding the Fourth Proportional to 143,822.70, 215,734.05 and 91,464.30

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Solution

The fourth proportional to 143,822.70, 215,734.05 and 91,464.30 is: 137,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,822.70 : 215,734.05 = 91,464.30 : x
  2. Step 2: Convert to fraction form
    143,822.70/215,734.05 = 91,464.30/x
  3. Step 3: Cross multiply
    143,822.70x = 215,734.05 × 91,464.30
  4. Step 4: Simplify right side
    143,822.70x = 19,731,963,869.42
  5. Step 5: Solve for x
    x = 19,731,963,869.42/143,822.70
  6. Step 6: Final answer
    x = 137,196.45

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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.