Home / 143,865.59-215,829.55-55,119.10

Finding the Fourth Proportional to 143,865.59, 215,829.55 and 55,119.10

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Solution

The fourth proportional to 143,865.59, 215,829.55 and 55,119.10 is: 82,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,865.59 : 215,829.55 = 55,119.10 : x
  2. Step 2: Convert to fraction form
    143,865.59/215,829.55 = 55,119.10/x
  3. Step 3: Cross multiply
    143,865.59x = 215,829.55 × 55,119.10
  4. Step 4: Simplify right side
    143,865.59x = 11,896,330,549.41
  5. Step 5: Solve for x
    x = 11,896,330,549.41/143,865.59
  6. Step 6: Final answer
    x = 82,690.59

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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.