Home / 137,823.22-190,216.65-84,139.46

Finding the Fourth Proportional to 137,823.22, 190,216.65 and 84,139.46

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Solution

The fourth proportional to 137,823.22, 190,216.65 and 84,139.46 is: 116,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,823.22 : 190,216.65 = 84,139.46 : x
  2. Step 2: Convert to fraction form
    137,823.22/190,216.65 = 84,139.46/x
  3. Step 3: Cross multiply
    137,823.22x = 190,216.65 × 84,139.46
  4. Step 4: Simplify right side
    137,823.22x = 16,004,726,291.76
  5. Step 5: Solve for x
    x = 16,004,726,291.76/137,823.22
  6. Step 6: Final answer
    x = 116,125.03

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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.