Home / 198,004.40-297,006.60-109,430.90

Finding the Fourth Proportional to 198,004.40, 297,006.60 and 109,430.90

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Solution

The fourth proportional to 198,004.40, 297,006.60 and 109,430.90 is: 164,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,004.40 : 297,006.60 = 109,430.90 : x
  2. Step 2: Convert to fraction form
    198,004.40/297,006.60 = 109,430.90/x
  3. Step 3: Cross multiply
    198,004.40x = 297,006.60 × 109,430.90
  4. Step 4: Simplify right side
    198,004.40x = 32,501,699,543.94
  5. Step 5: Solve for x
    x = 32,501,699,543.94/198,004.40
  6. Step 6: Final answer
    x = 164,146.35

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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.