Home / 143,579.84-215,370.24-69,656

Finding the Fourth Proportional to 143,579.84, 215,370.24 and 69,656

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Solution

The fourth proportional to 143,579.84, 215,370.24 and 69,656 is: 104,484.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,579.84 : 215,370.24 = 69,656 : x
  2. Step 2: Convert to fraction form
    143,579.84/215,370.24 = 69,656/x
  3. Step 3: Cross multiply
    143,579.84x = 215,370.24 × 69,656
  4. Step 4: Simplify right side
    143,579.84x = 15,001,829,437.44
  5. Step 5: Solve for x
    x = 15,001,829,437.44/143,579.84
  6. Step 6: Final answer
    x = 104,484.23

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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.