Home / 131,779.55-181,855.50-71,350.25

Finding the Fourth Proportional to 131,779.55, 181,855.50 and 71,350.25

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Solution

The fourth proportional to 131,779.55, 181,855.50 and 71,350.25 is: 98,463.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,779.55 : 181,855.50 = 71,350.25 : x
  2. Step 2: Convert to fraction form
    131,779.55/181,855.50 = 71,350.25/x
  3. Step 3: Cross multiply
    131,779.55x = 181,855.50 × 71,350.25
  4. Step 4: Simplify right side
    131,779.55x = 12,975,434,479.60
  5. Step 5: Solve for x
    x = 12,975,434,479.60/131,779.55
  6. Step 6: Final answer
    x = 98,463.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.