Home / 198,740.86-274,237.50-134,350.20

Finding the Fourth Proportional to 198,740.86, 274,237.50 and 134,350.20

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Solution

The fourth proportional to 198,740.86, 274,237.50 and 134,350.20 is: 185,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,740.86 : 274,237.50 = 134,350.20 : x
  2. Step 2: Convert to fraction form
    198,740.86/274,237.50 = 134,350.20/x
  3. Step 3: Cross multiply
    198,740.86x = 274,237.50 × 134,350.20
  4. Step 4: Simplify right side
    198,740.86x = 36,843,862,913.42
  5. Step 5: Solve for x
    x = 36,843,862,913.42/198,740.86
  6. Step 6: Final answer
    x = 185,386.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.