Home / 120,930.59-181,417.70-49,814.42

Finding the Fourth Proportional to 120,930.59, 181,417.70 and 49,814.42

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Solution

The fourth proportional to 120,930.59, 181,417.70 and 49,814.42 is: 74,730.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,930.59 : 181,417.70 = 49,814.42 : x
  2. Step 2: Convert to fraction form
    120,930.59/181,417.70 = 49,814.42/x
  3. Step 3: Cross multiply
    120,930.59x = 181,417.70 × 49,814.42
  4. Step 4: Simplify right side
    120,930.59x = 9,037,216,347.07
  5. Step 5: Solve for x
    x = 9,037,216,347.07/120,930.59
  6. Step 6: Final answer
    x = 74,730.61

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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.