Home / 143,864.82-215,912.79-64,985.94

Finding the Fourth Proportional to 143,864.82, 215,912.79 and 64,985.94

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Solution

The fourth proportional to 143,864.82, 215,912.79 and 64,985.94 is: 97,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,864.82 : 215,912.79 = 64,985.94 : x
  2. Step 2: Convert to fraction form
    143,864.82/215,912.79 = 64,985.94/x
  3. Step 3: Cross multiply
    143,864.82x = 215,912.79 × 64,985.94
  4. Step 4: Simplify right side
    143,864.82x = 14,031,295,616.17
  5. Step 5: Solve for x
    x = 14,031,295,616.17/143,864.82
  6. Step 6: Final answer
    x = 97,531.11

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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.