Home / 142,107.24-213,116.43-47,315.28

Finding the Fourth Proportional to 142,107.24, 213,116.43 and 47,315.28

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Solution

The fourth proportional to 142,107.24, 213,116.43 and 47,315.28 is: 70,958.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,107.24 : 213,116.43 = 47,315.28 : x
  2. Step 2: Convert to fraction form
    142,107.24/213,116.43 = 47,315.28/x
  3. Step 3: Cross multiply
    142,107.24x = 213,116.43 × 47,315.28
  4. Step 4: Simplify right side
    142,107.24x = 10,083,663,558.05
  5. Step 5: Solve for x
    x = 10,083,663,558.05/142,107.24
  6. Step 6: Final answer
    x = 70,958.13

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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.