Home / 198,699.72-274,109.16-118,070.15

Finding the Fourth Proportional to 198,699.72, 274,109.16 and 118,070.15

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Solution

The fourth proportional to 198,699.72, 274,109.16 and 118,070.15 is: 162,879.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,699.72 : 274,109.16 = 118,070.15 : x
  2. Step 2: Convert to fraction form
    198,699.72/274,109.16 = 118,070.15/x
  3. Step 3: Cross multiply
    198,699.72x = 274,109.16 × 118,070.15
  4. Step 4: Simplify right side
    198,699.72x = 32,364,108,267.03
  5. Step 5: Solve for x
    x = 32,364,108,267.03/198,699.72
  6. Step 6: Final answer
    x = 162,879.49

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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.