Home / 142,705.17-214,069.64-47,930.85

Finding the Fourth Proportional to 142,705.17, 214,069.64 and 47,930.85

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Solution

The fourth proportional to 142,705.17, 214,069.64 and 47,930.85 is: 71,900.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,705.17 : 214,069.64 = 47,930.85 : x
  2. Step 2: Convert to fraction form
    142,705.17/214,069.64 = 47,930.85/x
  3. Step 3: Cross multiply
    142,705.17x = 214,069.64 × 47,930.85
  4. Step 4: Simplify right side
    142,705.17x = 10,260,539,564.74
  5. Step 5: Solve for x
    x = 10,260,539,564.74/142,705.17
  6. Step 6: Final answer
    x = 71,900.27

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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.