Home / 137,824.48-190,218.60-84,140.80

Finding the Fourth Proportional to 137,824.48, 190,218.60 and 84,140.80

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Solution

The fourth proportional to 137,824.48, 190,218.60 and 84,140.80 is: 116,127.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,824.48 : 190,218.60 = 84,140.80 : x
  2. Step 2: Convert to fraction form
    137,824.48/190,218.60 = 84,140.80/x
  3. Step 3: Cross multiply
    137,824.48x = 190,218.60 × 84,140.80
  4. Step 4: Simplify right side
    137,824.48x = 16,005,145,178.88
  5. Step 5: Solve for x
    x = 16,005,145,178.88/137,824.48
  6. Step 6: Final answer
    x = 116,127.01

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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.