Home / 207,021.61-285,701.07-115,150.60

Finding the Fourth Proportional to 207,021.61, 285,701.07 and 115,150.60

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Solution

The fourth proportional to 207,021.61, 285,701.07 and 115,150.60 is: 158,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,021.61 : 285,701.07 = 115,150.60 : x
  2. Step 2: Convert to fraction form
    207,021.61/285,701.07 = 115,150.60/x
  3. Step 3: Cross multiply
    207,021.61x = 285,701.07 × 115,150.60
  4. Step 4: Simplify right side
    207,021.61x = 32,898,649,631.14
  5. Step 5: Solve for x
    x = 32,898,649,631.14/207,021.61
  6. Step 6: Final answer
    x = 158,914.08

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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.