Home / 212,830.16-319,215.12-63,086.28

Finding the Fourth Proportional to 212,830.16, 319,215.12 and 63,086.28

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Solution

The fourth proportional to 212,830.16, 319,215.12 and 63,086.28 is: 94,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,830.16 : 319,215.12 = 63,086.28 : x
  2. Step 2: Convert to fraction form
    212,830.16/319,215.12 = 63,086.28/x
  3. Step 3: Cross multiply
    212,830.16x = 319,215.12 × 63,086.28
  4. Step 4: Simplify right side
    212,830.16x = 20,138,094,440.55
  5. Step 5: Solve for x
    x = 20,138,094,440.55/212,830.16
  6. Step 6: Final answer
    x = 94,620.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.