Home / 143,385.84-215,122.52-73,314.36

Finding the Fourth Proportional to 143,385.84, 215,122.52 and 73,314.36

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Solution

The fourth proportional to 143,385.84, 215,122.52 and 73,314.36 is: 109,993.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,385.84 : 215,122.52 = 73,314.36 : x
  2. Step 2: Convert to fraction form
    143,385.84/215,122.52 = 73,314.36/x
  3. Step 3: Cross multiply
    143,385.84x = 215,122.52 × 73,314.36
  4. Step 4: Simplify right side
    143,385.84x = 15,771,569,875.39
  5. Step 5: Solve for x
    x = 15,771,569,875.39/143,385.84
  6. Step 6: Final answer
    x = 109,993.91

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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.