Home / 198,128.89-297,182.98-64,991.62

Finding the Fourth Proportional to 198,128.89, 297,182.98 and 64,991.62

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Solution

The fourth proportional to 198,128.89, 297,182.98 and 64,991.62 is: 97,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,128.89 : 297,182.98 = 64,991.62 : x
  2. Step 2: Convert to fraction form
    198,128.89/297,182.98 = 64,991.62/x
  3. Step 3: Cross multiply
    198,128.89x = 297,182.98 × 64,991.62
  4. Step 4: Simplify right side
    198,128.89x = 19,314,403,306.63
  5. Step 5: Solve for x
    x = 19,314,403,306.63/198,128.89
  6. Step 6: Final answer
    x = 97,484.03

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1.5x scale

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.