Home / 212,648.31-319,004.73-72,374.13

Finding the Fourth Proportional to 212,648.31, 319,004.73 and 72,374.13

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Solution

The fourth proportional to 212,648.31, 319,004.73 and 72,374.13 is: 108,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,648.31 : 319,004.73 = 72,374.13 : x
  2. Step 2: Convert to fraction form
    212,648.31/319,004.73 = 72,374.13/x
  3. Step 3: Cross multiply
    212,648.31x = 319,004.73 × 72,374.13
  4. Step 4: Simplify right side
    212,648.31x = 23,087,689,799.63
  5. Step 5: Solve for x
    x = 23,087,689,799.63/212,648.31
  6. Step 6: Final answer
    x = 108,572.18

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1.5x scale

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.