Home / 84,430.22-126,478.90-68,653.06

Finding the Fourth Proportional to 84,430.22, 126,478.90 and 68,653.06

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Solution

The fourth proportional to 84,430.22, 126,478.90 and 68,653.06 is: 102,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,430.22 : 126,478.90 = 68,653.06 : x
  2. Step 2: Convert to fraction form
    84,430.22/126,478.90 = 68,653.06/x
  3. Step 3: Cross multiply
    84,430.22x = 126,478.90 × 68,653.06
  4. Step 4: Simplify right side
    84,430.22x = 8,683,163,022.60
  5. Step 5: Solve for x
    x = 8,683,163,022.60/84,430.22
  6. Step 6: Final answer
    x = 102,844.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.