Home / 212,731.48-319,156.35-92,798.92

Finding the Fourth Proportional to 212,731.48, 319,156.35 and 92,798.92

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Solution

The fourth proportional to 212,731.48, 319,156.35 and 92,798.92 is: 139,224.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,731.48 : 319,156.35 = 92,798.92 : x
  2. Step 2: Convert to fraction form
    212,731.48/319,156.35 = 92,798.92/x
  3. Step 3: Cross multiply
    212,731.48x = 319,156.35 × 92,798.92
  4. Step 4: Simplify right side
    212,731.48x = 29,617,364,591.14
  5. Step 5: Solve for x
    x = 29,617,364,591.14/212,731.48
  6. Step 6: Final answer
    x = 139,224.17

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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.