Home / 143,155.08-214,570.62-72,885.96

Finding the Fourth Proportional to 143,155.08, 214,570.62 and 72,885.96

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Solution

The fourth proportional to 143,155.08, 214,570.62 and 72,885.96 is: 109,246.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,155.08 : 214,570.62 = 72,885.96 : x
  2. Step 2: Convert to fraction form
    143,155.08/214,570.62 = 72,885.96/x
  3. Step 3: Cross multiply
    143,155.08x = 214,570.62 × 72,885.96
  4. Step 4: Simplify right side
    143,155.08x = 15,639,185,626.50
  5. Step 5: Solve for x
    x = 15,639,185,626.50/143,155.08
  6. Step 6: Final answer
    x = 109,246.46

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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.