Home / 212,728.16-293,566.80-117,238.32

Finding the Fourth Proportional to 212,728.16, 293,566.80 and 117,238.32

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Solution

The fourth proportional to 212,728.16, 293,566.80 and 117,238.32 is: 161,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,728.16 : 293,566.80 = 117,238.32 : x
  2. Step 2: Convert to fraction form
    212,728.16/293,566.80 = 117,238.32/x
  3. Step 3: Cross multiply
    212,728.16x = 293,566.80 × 117,238.32
  4. Step 4: Simplify right side
    212,728.16x = 34,417,278,439.78
  5. Step 5: Solve for x
    x = 34,417,278,439.78/212,728.16
  6. Step 6: Final answer
    x = 161,789.95

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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.