Home / 143,573.81-215,371.65-43,742.53

Finding the Fourth Proportional to 143,573.81, 215,371.65 and 43,742.53

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Solution

The fourth proportional to 143,573.81, 215,371.65 and 43,742.53 is: 65,617.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,573.81 : 215,371.65 = 43,742.53 : x
  2. Step 2: Convert to fraction form
    143,573.81/215,371.65 = 43,742.53/x
  3. Step 3: Cross multiply
    143,573.81x = 215,371.65 × 43,742.53
  4. Step 4: Simplify right side
    143,573.81x = 9,420,899,784.42
  5. Step 5: Solve for x
    x = 9,420,899,784.42/143,573.81
  6. Step 6: Final answer
    x = 65,617.12

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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.