Home / 142,412.31-213,661.29-42,575.75

Finding the Fourth Proportional to 142,412.31, 213,661.29 and 42,575.75

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Solution

The fourth proportional to 142,412.31, 213,661.29 and 42,575.75 is: 63,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,412.31 : 213,661.29 = 42,575.75 : x
  2. Step 2: Convert to fraction form
    142,412.31/213,661.29 = 42,575.75/x
  3. Step 3: Cross multiply
    142,412.31x = 213,661.29 × 42,575.75
  4. Step 4: Simplify right side
    142,412.31x = 9,096,789,454.84
  5. Step 5: Solve for x
    x = 9,096,789,454.84/142,412.31
  6. Step 6: Final answer
    x = 63,876.43

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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.