Home / 142,977.90-214,468.40-43,138.98

Finding the Fourth Proportional to 142,977.90, 214,468.40 and 43,138.98

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Solution

The fourth proportional to 142,977.90, 214,468.40 and 43,138.98 is: 64,708.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,977.90 : 214,468.40 = 43,138.98 : x
  2. Step 2: Convert to fraction form
    142,977.90/214,468.40 = 43,138.98/x
  3. Step 3: Cross multiply
    142,977.90x = 214,468.40 × 43,138.98
  4. Step 4: Simplify right side
    142,977.90x = 9,251,948,018.23
  5. Step 5: Solve for x
    x = 9,251,948,018.23/142,977.90
  6. Step 6: Final answer
    x = 64,708.94

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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.