Home / 142,560.96-213,779.16-67,702.56

Finding the Fourth Proportional to 142,560.96, 213,779.16 and 67,702.56

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Solution

The fourth proportional to 142,560.96, 213,779.16 and 67,702.56 is: 101,524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,560.96 : 213,779.16 = 67,702.56 : x
  2. Step 2: Convert to fraction form
    142,560.96/213,779.16 = 67,702.56/x
  3. Step 3: Cross multiply
    142,560.96x = 213,779.16 × 67,702.56
  4. Step 4: Simplify right side
    142,560.96x = 14,473,396,406.65
  5. Step 5: Solve for x
    x = 14,473,396,406.65/142,560.96
  6. Step 6: Final answer
    x = 101,524.26

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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.