Home / 142,113.24-213,119.82-47,317.68

Finding the Fourth Proportional to 142,113.24, 213,119.82 and 47,317.68

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Solution

The fourth proportional to 142,113.24, 213,119.82 and 47,317.68 is: 70,959.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,113.24 : 213,119.82 = 47,317.68 : x
  2. Step 2: Convert to fraction form
    142,113.24/213,119.82 = 47,317.68/x
  3. Step 3: Cross multiply
    142,113.24x = 213,119.82 × 47,317.68
  4. Step 4: Simplify right side
    142,113.24x = 10,084,335,444.42
  5. Step 5: Solve for x
    x = 10,084,335,444.42/142,113.24
  6. Step 6: Final answer
    x = 70,959.86

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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.