Home / 143,186.18-197,618.47-103,032.86

Finding the Fourth Proportional to 143,186.18, 197,618.47 and 103,032.86

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Solution

The fourth proportional to 143,186.18, 197,618.47 and 103,032.86 is: 142,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,186.18 : 197,618.47 = 103,032.86 : x
  2. Step 2: Convert to fraction form
    143,186.18/197,618.47 = 103,032.86/x
  3. Step 3: Cross multiply
    143,186.18x = 197,618.47 × 103,032.86
  4. Step 4: Simplify right side
    143,186.18x = 20,361,194,907.25
  5. Step 5: Solve for x
    x = 20,361,194,907.25/143,186.18
  6. Step 6: Final answer
    x = 142,200.84

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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.