Home / 213,127.42-319,525.88-138,089.02

Finding the Fourth Proportional to 213,127.42, 319,525.88 and 138,089.02

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Solution

The fourth proportional to 213,127.42, 319,525.88 and 138,089.02 is: 207,026.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,127.42 : 319,525.88 = 138,089.02 : x
  2. Step 2: Convert to fraction form
    213,127.42/319,525.88 = 138,089.02/x
  3. Step 3: Cross multiply
    213,127.42x = 319,525.88 × 138,089.02
  4. Step 4: Simplify right side
    213,127.42x = 44,123,015,633.84
  5. Step 5: Solve for x
    x = 44,123,015,633.84/213,127.42
  6. Step 6: Final answer
    x = 207,026.46

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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.