Home / 143,534.21-215,332.44-43,691.80

Finding the Fourth Proportional to 143,534.21, 215,332.44 and 43,691.80

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Solution

The fourth proportional to 143,534.21, 215,332.44 and 43,691.80 is: 65,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,534.21 : 215,332.44 = 43,691.80 : x
  2. Step 2: Convert to fraction form
    143,534.21/215,332.44 = 43,691.80/x
  3. Step 3: Cross multiply
    143,534.21x = 215,332.44 × 43,691.80
  4. Step 4: Simplify right side
    143,534.21x = 9,408,261,513.60
  5. Step 5: Solve for x
    x = 9,408,261,513.60/143,534.21
  6. Step 6: Final answer
    x = 65,547.17

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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.