Home / 207,439.36-286,269.96-122,556.22

Finding the Fourth Proportional to 207,439.36, 286,269.96 and 122,556.22

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Solution

The fourth proportional to 207,439.36, 286,269.96 and 122,556.22 is: 169,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,439.36 : 286,269.96 = 122,556.22 : x
  2. Step 2: Convert to fraction form
    207,439.36/286,269.96 = 122,556.22/x
  3. Step 3: Cross multiply
    207,439.36x = 286,269.96 × 122,556.22
  4. Step 4: Simplify right side
    207,439.36x = 35,084,164,197.15
  5. Step 5: Solve for x
    x = 35,084,164,197.15/207,439.36
  6. Step 6: Final answer
    x = 169,129.74

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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.