Home / 212,887.44-319,331.16-72,646.07

Finding the Fourth Proportional to 212,887.44, 319,331.16 and 72,646.07

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Solution

The fourth proportional to 212,887.44, 319,331.16 and 72,646.07 is: 108,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,887.44 : 319,331.16 = 72,646.07 : x
  2. Step 2: Convert to fraction form
    212,887.44/319,331.16 = 72,646.07/x
  3. Step 3: Cross multiply
    212,887.44x = 319,331.16 × 72,646.07
  4. Step 4: Simplify right side
    212,887.44x = 23,198,152,205.89
  5. Step 5: Solve for x
    x = 23,198,152,205.89/212,887.44
  6. Step 6: Final answer
    x = 108,969.10

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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.