Home / 212,642.08-293,445.39-117,147.94

Finding the Fourth Proportional to 212,642.08, 293,445.39 and 117,147.94

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Solution

The fourth proportional to 212,642.08, 293,445.39 and 117,147.94 is: 161,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,642.08 : 293,445.39 = 117,147.94 : x
  2. Step 2: Convert to fraction form
    212,642.08/293,445.39 = 117,147.94/x
  3. Step 3: Cross multiply
    212,642.08x = 293,445.39 × 117,147.94
  4. Step 4: Simplify right side
    212,642.08x = 34,376,522,941.00
  5. Step 5: Solve for x
    x = 34,376,522,941.00/212,642.08
  6. Step 6: Final answer
    x = 161,663.78

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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.