Home / 207,451.43-286,346.44-121,430.54

Finding the Fourth Proportional to 207,451.43, 286,346.44 and 121,430.54

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Solution

The fourth proportional to 207,451.43, 286,346.44 and 121,430.54 is: 167,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,451.43 : 286,346.44 = 121,430.54 : x
  2. Step 2: Convert to fraction form
    207,451.43/286,346.44 = 121,430.54/x
  3. Step 3: Cross multiply
    207,451.43x = 286,346.44 × 121,430.54
  4. Step 4: Simplify right side
    207,451.43x = 34,771,203,703.93
  5. Step 5: Solve for x
    x = 34,771,203,703.93/207,451.43
  6. Step 6: Final answer
    x = 167,611.30

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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.