Home / 137,810.43-190,199.04-84,126.57

Finding the Fourth Proportional to 137,810.43, 190,199.04 and 84,126.57

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Solution

The fourth proportional to 137,810.43, 190,199.04 and 84,126.57 is: 116,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,810.43 : 190,199.04 = 84,126.57 : x
  2. Step 2: Convert to fraction form
    137,810.43/190,199.04 = 84,126.57/x
  3. Step 3: Cross multiply
    137,810.43x = 190,199.04 × 84,126.57
  4. Step 4: Simplify right side
    137,810.43x = 16,000,792,852.49
  5. Step 5: Solve for x
    x = 16,000,792,852.49/137,810.43
  6. Step 6: Final answer
    x = 116,107.27

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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.