Home / 142,704.60-213,902.39-92,820.35

Finding the Fourth Proportional to 142,704.60, 213,902.39 and 92,820.35

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Solution

The fourth proportional to 142,704.60, 213,902.39 and 92,820.35 is: 139,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,704.60 : 213,902.39 = 92,820.35 : x
  2. Step 2: Convert to fraction form
    142,704.60/213,902.39 = 92,820.35/x
  3. Step 3: Cross multiply
    142,704.60x = 213,902.39 × 92,820.35
  4. Step 4: Simplify right side
    142,704.60x = 19,854,493,868.18
  5. Step 5: Solve for x
    x = 19,854,493,868.18/142,704.60
  6. Step 6: Final answer
    x = 139,130.02

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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.