Home / 142,074.41-213,109.79-40,874.94

Finding the Fourth Proportional to 142,074.41, 213,109.79 and 40,874.94

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Solution

The fourth proportional to 142,074.41, 213,109.79 and 40,874.94 is: 61,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,074.41 : 213,109.79 = 40,874.94 : x
  2. Step 2: Convert to fraction form
    142,074.41/213,109.79 = 40,874.94/x
  3. Step 3: Cross multiply
    142,074.41x = 213,109.79 × 40,874.94
  4. Step 4: Simplify right side
    142,074.41x = 8,710,849,675.29
  5. Step 5: Solve for x
    x = 8,710,849,675.29/142,074.41
  6. Step 6: Final answer
    x = 61,311.89

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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.