Home / 212,522.72-293,272.68-121,815.53

Finding the Fourth Proportional to 212,522.72, 293,272.68 and 121,815.53

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Solution

The fourth proportional to 212,522.72, 293,272.68 and 121,815.53 is: 168,100.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,522.72 : 293,272.68 = 121,815.53 : x
  2. Step 2: Convert to fraction form
    212,522.72/293,272.68 = 121,815.53/x
  3. Step 3: Cross multiply
    212,522.72x = 293,272.68 × 121,815.53
  4. Step 4: Simplify right side
    212,522.72x = 35,725,165,482.36
  5. Step 5: Solve for x
    x = 35,725,165,482.36/212,522.72
  6. Step 6: Final answer
    x = 168,100.46

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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.