Home / 143,634.49-215,475.09-42,442.81

Finding the Fourth Proportional to 143,634.49, 215,475.09 and 42,442.81

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Solution

The fourth proportional to 143,634.49, 215,475.09 and 42,442.81 is: 63,671.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,634.49 : 215,475.09 = 42,442.81 : x
  2. Step 2: Convert to fraction form
    143,634.49/215,475.09 = 42,442.81/x
  3. Step 3: Cross multiply
    143,634.49x = 215,475.09 × 42,442.81
  4. Step 4: Simplify right side
    143,634.49x = 9,145,368,304.60
  5. Step 5: Solve for x
    x = 9,145,368,304.60/143,634.49
  6. Step 6: Final answer
    x = 63,671.12

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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.