Home / 142,729.88-214,043.12-47,931.70

Finding the Fourth Proportional to 142,729.88, 214,043.12 and 47,931.70

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Solution

The fourth proportional to 142,729.88, 214,043.12 and 47,931.70 is: 71,880.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,729.88 : 214,043.12 = 47,931.70 : x
  2. Step 2: Convert to fraction form
    142,729.88/214,043.12 = 47,931.70/x
  3. Step 3: Cross multiply
    142,729.88x = 214,043.12 × 47,931.70
  4. Step 4: Simplify right side
    142,729.88x = 10,259,450,614.90
  5. Step 5: Solve for x
    x = 10,259,450,614.90/142,729.88
  6. Step 6: Final answer
    x = 71,880.19

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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.