Home / 198,110.90-297,199.16-64,955.40

Finding the Fourth Proportional to 198,110.90, 297,199.16 and 64,955.40

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Solution

The fourth proportional to 198,110.90, 297,199.16 and 64,955.40 is: 97,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,110.90 : 297,199.16 = 64,955.40 : x
  2. Step 2: Convert to fraction form
    198,110.90/297,199.16 = 64,955.40/x
  3. Step 3: Cross multiply
    198,110.90x = 297,199.16 × 64,955.40
  4. Step 4: Simplify right side
    198,110.90x = 19,304,689,992.69
  5. Step 5: Solve for x
    x = 19,304,689,992.69/198,110.90
  6. Step 6: Final answer
    x = 97,443.86

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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.