Home / 198,134.55-297,219.65-55,981.58

Finding the Fourth Proportional to 198,134.55, 297,219.65 and 55,981.58

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Solution

The fourth proportional to 198,134.55, 297,219.65 and 55,981.58 is: 83,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,134.55 : 297,219.65 = 55,981.58 : x
  2. Step 2: Convert to fraction form
    198,134.55/297,219.65 = 55,981.58/x
  3. Step 3: Cross multiply
    198,134.55x = 297,219.65 × 55,981.58
  4. Step 4: Simplify right side
    198,134.55x = 16,638,823,848.04
  5. Step 5: Solve for x
    x = 16,638,823,848.04/198,134.55
  6. Step 6: Final answer
    x = 83,977.40

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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.