Home / 142,712.32-214,099.80-47,939.08

Finding the Fourth Proportional to 142,712.32, 214,099.80 and 47,939.08

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Solution

The fourth proportional to 142,712.32, 214,099.80 and 47,939.08 is: 71,919.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,712.32 : 214,099.80 = 47,939.08 : x
  2. Step 2: Convert to fraction form
    142,712.32/214,099.80 = 47,939.08/x
  3. Step 3: Cross multiply
    142,712.32x = 214,099.80 × 47,939.08
  4. Step 4: Simplify right side
    142,712.32x = 10,263,747,440.18
  5. Step 5: Solve for x
    x = 10,263,747,440.18/142,712.32
  6. Step 6: Final answer
    x = 71,919.14

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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.