Home / 212,947.02-319,631.88-113,108.04

Finding the Fourth Proportional to 212,947.02, 319,631.88 and 113,108.04

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Solution

The fourth proportional to 212,947.02, 319,631.88 and 113,108.04 is: 169,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,947.02 : 319,631.88 = 113,108.04 : x
  2. Step 2: Convert to fraction form
    212,947.02/319,631.88 = 113,108.04/x
  3. Step 3: Cross multiply
    212,947.02x = 319,631.88 × 113,108.04
  4. Step 4: Simplify right side
    212,947.02x = 36,152,935,468.32
  5. Step 5: Solve for x
    x = 36,152,935,468.32/212,947.02
  6. Step 6: Final answer
    x = 169,774.32

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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.