Home / 142,428.23-213,747.30-67,548.59

Finding the Fourth Proportional to 142,428.23, 213,747.30 and 67,548.59

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Solution

The fourth proportional to 142,428.23, 213,747.30 and 67,548.59 is: 101,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,428.23 : 213,747.30 = 67,548.59 : x
  2. Step 2: Convert to fraction form
    142,428.23/213,747.30 = 67,548.59/x
  3. Step 3: Cross multiply
    142,428.23x = 213,747.30 × 67,548.59
  4. Step 4: Simplify right side
    142,428.23x = 14,438,328,731.31
  5. Step 5: Solve for x
    x = 14,438,328,731.31/142,428.23
  6. Step 6: Final answer
    x = 101,372.66

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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.