Home / 188,070.98-259,538.20-103,188.38

Finding the Fourth Proportional to 188,070.98, 259,538.20 and 103,188.38

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Solution

The fourth proportional to 188,070.98, 259,538.20 and 103,188.38 is: 142,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,070.98 : 259,538.20 = 103,188.38 : x
  2. Step 2: Convert to fraction form
    188,070.98/259,538.20 = 103,188.38/x
  3. Step 3: Cross multiply
    188,070.98x = 259,538.20 × 103,188.38
  4. Step 4: Simplify right side
    188,070.98x = 26,781,326,406.12
  5. Step 5: Solve for x
    x = 26,781,326,406.12/188,070.98
  6. Step 6: Final answer
    x = 142,400.10

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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.