Home / 142,406.82-213,530.28-47,587.04

Finding the Fourth Proportional to 142,406.82, 213,530.28 and 47,587.04

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Solution

The fourth proportional to 142,406.82, 213,530.28 and 47,587.04 is: 71,353.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,406.82 : 213,530.28 = 47,587.04 : x
  2. Step 2: Convert to fraction form
    142,406.82/213,530.28 = 47,587.04/x
  3. Step 3: Cross multiply
    142,406.82x = 213,530.28 × 47,587.04
  4. Step 4: Simplify right side
    142,406.82x = 10,161,272,907.92
  5. Step 5: Solve for x
    x = 10,161,272,907.92/142,406.82
  6. Step 6: Final answer
    x = 71,353.84

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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.