Home / 131,384.20-181,310.37-74,795.50

Finding the Fourth Proportional to 131,384.20, 181,310.37 and 74,795.50

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Solution

The fourth proportional to 131,384.20, 181,310.37 and 74,795.50 is: 103,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,384.20 : 181,310.37 = 74,795.50 : x
  2. Step 2: Convert to fraction form
    131,384.20/181,310.37 = 74,795.50/x
  3. Step 3: Cross multiply
    131,384.20x = 181,310.37 × 74,795.50
  4. Step 4: Simplify right side
    131,384.20x = 13,561,199,779.34
  5. Step 5: Solve for x
    x = 13,561,199,779.34/131,384.20
  6. Step 6: Final answer
    x = 103,217.89

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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.