Home / 198,017.12-297,020.76-57,776.96

Finding the Fourth Proportional to 198,017.12, 297,020.76 and 57,776.96

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Solution

The fourth proportional to 198,017.12, 297,020.76 and 57,776.96 is: 86,664.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,017.12 : 297,020.76 = 57,776.96 : x
  2. Step 2: Convert to fraction form
    198,017.12/297,020.76 = 57,776.96/x
  3. Step 3: Cross multiply
    198,017.12x = 297,020.76 × 57,776.96
  4. Step 4: Simplify right side
    198,017.12x = 17,160,956,569.69
  5. Step 5: Solve for x
    x = 17,160,956,569.69/198,017.12
  6. Step 6: Final answer
    x = 86,664.00

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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.