Home / 142,173.13-213,188.19-47,369.74

Finding the Fourth Proportional to 142,173.13, 213,188.19 and 47,369.74

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Solution

The fourth proportional to 142,173.13, 213,188.19 and 47,369.74 is: 71,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,173.13 : 213,188.19 = 47,369.74 : x
  2. Step 2: Convert to fraction form
    142,173.13/213,188.19 = 47,369.74/x
  3. Step 3: Cross multiply
    142,173.13x = 213,188.19 × 47,369.74
  4. Step 4: Simplify right side
    142,173.13x = 10,098,669,131.37
  5. Step 5: Solve for x
    x = 10,098,669,131.37/142,173.13
  6. Step 6: Final answer
    x = 71,030.79

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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.