Home / 213,129.90-319,577.13-134,074.98

Finding the Fourth Proportional to 213,129.90, 319,577.13 and 134,074.98

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Solution

The fourth proportional to 213,129.90, 319,577.13 and 134,074.98 is: 201,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,129.90 : 319,577.13 = 134,074.98 : x
  2. Step 2: Convert to fraction form
    213,129.90/319,577.13 = 134,074.98/x
  3. Step 3: Cross multiply
    213,129.90x = 319,577.13 × 134,074.98
  4. Step 4: Simplify right side
    213,129.90x = 42,847,297,313.21
  5. Step 5: Solve for x
    x = 42,847,297,313.21/213,129.90
  6. Step 6: Final answer
    x = 201,038.42

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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.