Home / 103,840.22-143,300.16-60,845.12

Finding the Fourth Proportional to 103,840.22, 143,300.16 and 60,845.12

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Solution

The fourth proportional to 103,840.22, 143,300.16 and 60,845.12 is: 83,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,840.22 : 143,300.16 = 60,845.12 : x
  2. Step 2: Convert to fraction form
    103,840.22/143,300.16 = 60,845.12/x
  3. Step 3: Cross multiply
    103,840.22x = 143,300.16 × 60,845.12
  4. Step 4: Simplify right side
    103,840.22x = 8,719,115,431.22
  5. Step 5: Solve for x
    x = 8,719,115,431.22/103,840.22
  6. Step 6: Final answer
    x = 83,966.65

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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.