Home / 212,431.68-293,162.32-115,641.98

Finding the Fourth Proportional to 212,431.68, 293,162.32 and 115,641.98

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Solution

The fourth proportional to 212,431.68, 293,162.32 and 115,641.98 is: 159,589.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,431.68 : 293,162.32 = 115,641.98 : x
  2. Step 2: Convert to fraction form
    212,431.68/293,162.32 = 115,641.98/x
  3. Step 3: Cross multiply
    212,431.68x = 293,162.32 × 115,641.98
  4. Step 4: Simplify right side
    212,431.68x = 33,901,870,779.74
  5. Step 5: Solve for x
    x = 33,901,870,779.74/212,431.68
  6. Step 6: Final answer
    x = 159,589.52

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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.