Home / 207,155.36-285,896.33-126,630.02

Finding the Fourth Proportional to 207,155.36, 285,896.33 and 126,630.02

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Solution

The fourth proportional to 207,155.36, 285,896.33 and 126,630.02 is: 174,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,155.36 : 285,896.33 = 126,630.02 : x
  2. Step 2: Convert to fraction form
    207,155.36/285,896.33 = 126,630.02/x
  3. Step 3: Cross multiply
    207,155.36x = 285,896.33 × 126,630.02
  4. Step 4: Simplify right side
    207,155.36x = 36,203,057,985.83
  5. Step 5: Solve for x
    x = 36,203,057,985.83/207,155.36
  6. Step 6: Final answer
    x = 174,762.83

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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.