Home / 212,422.78-293,143.38-116,929

Finding the Fourth Proportional to 212,422.78, 293,143.38 and 116,929

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Solution

The fourth proportional to 212,422.78, 293,143.38 and 116,929 is: 161,361.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,422.78 : 293,143.38 = 116,929 : x
  2. Step 2: Convert to fraction form
    212,422.78/293,143.38 = 116,929/x
  3. Step 3: Cross multiply
    212,422.78x = 293,143.38 × 116,929
  4. Step 4: Simplify right side
    212,422.78x = 34,276,962,280.02
  5. Step 5: Solve for x
    x = 34,276,962,280.02/212,422.78
  6. Step 6: Final answer
    x = 161,361.99

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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.