Home / 212,805.28-293,643.66-122,165.20

Finding the Fourth Proportional to 212,805.28, 293,643.66 and 122,165.20

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Solution

The fourth proportional to 212,805.28, 293,643.66 and 122,165.20 is: 168,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,805.28 : 293,643.66 = 122,165.20 : x
  2. Step 2: Convert to fraction form
    212,805.28/293,643.66 = 122,165.20/x
  3. Step 3: Cross multiply
    212,805.28x = 293,643.66 × 122,165.20
  4. Step 4: Simplify right side
    212,805.28x = 35,873,036,452.63
  5. Step 5: Solve for x
    x = 35,873,036,452.63/212,805.28
  6. Step 6: Final answer
    x = 168,572.12

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1.5x scale

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.