Home / 212,711.90-293,538.62-115,916.60

Finding the Fourth Proportional to 212,711.90, 293,538.62 and 115,916.60

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Solution

The fourth proportional to 212,711.90, 293,538.62 and 115,916.60 is: 159,962.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,711.90 : 293,538.62 = 115,916.60 : x
  2. Step 2: Convert to fraction form
    212,711.90/293,538.62 = 115,916.60/x
  3. Step 3: Cross multiply
    212,711.90x = 293,538.62 × 115,916.60
  4. Step 4: Simplify right side
    212,711.90x = 34,025,998,799.09
  5. Step 5: Solve for x
    x = 34,025,998,799.09/212,711.90
  6. Step 6: Final answer
    x = 159,962.84

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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.