Home / 144,083.07-198,810.86-80,420.85

Finding the Fourth Proportional to 144,083.07, 198,810.86 and 80,420.85

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Solution

The fourth proportional to 144,083.07, 198,810.86 and 80,420.85 is: 110,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,083.07 : 198,810.86 = 80,420.85 : x
  2. Step 2: Convert to fraction form
    144,083.07/198,810.86 = 80,420.85/x
  3. Step 3: Cross multiply
    144,083.07x = 198,810.86 × 80,420.85
  4. Step 4: Simplify right side
    144,083.07x = 15,988,537,948.33
  5. Step 5: Solve for x
    x = 15,988,537,948.33/144,083.07
  6. Step 6: Final answer
    x = 110,967.50

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1.5x scale

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.