Home / 213,742.98-319,943.79-142,525.62

Finding the Fourth Proportional to 213,742.98, 319,943.79 and 142,525.62

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Solution

The fourth proportional to 213,742.98, 319,943.79 and 142,525.62 is: 213,341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,742.98 : 319,943.79 = 142,525.62 : x
  2. Step 2: Convert to fraction form
    213,742.98/319,943.79 = 142,525.62/x
  3. Step 3: Cross multiply
    213,742.98x = 319,943.79 × 142,525.62
  4. Step 4: Simplify right side
    213,742.98x = 45,600,187,034.90
  5. Step 5: Solve for x
    x = 45,600,187,034.90/213,742.98
  6. Step 6: Final answer
    x = 213,341.21

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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.