Home / 143,688.15-215,532.09-67,768.98

Finding the Fourth Proportional to 143,688.15, 215,532.09 and 67,768.98

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Solution

The fourth proportional to 143,688.15, 215,532.09 and 67,768.98 is: 101,653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,688.15 : 215,532.09 = 67,768.98 : x
  2. Step 2: Convert to fraction form
    143,688.15/215,532.09 = 67,768.98/x
  3. Step 3: Cross multiply
    143,688.15x = 215,532.09 × 67,768.98
  4. Step 4: Simplify right side
    143,688.15x = 14,606,390,150.70
  5. Step 5: Solve for x
    x = 14,606,390,150.70/143,688.15
  6. Step 6: Final answer
    x = 101,653.41

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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.