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Finding the Fourth Proportional to 143,637.54, 198,034.54 and 117,699.66

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Solution

The fourth proportional to 143,637.54, 198,034.54 and 117,699.66 is: 162,273.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,637.54 : 198,034.54 = 117,699.66 : x
  2. Step 2: Convert to fraction form
    143,637.54/198,034.54 = 117,699.66/x
  3. Step 3: Cross multiply
    143,637.54x = 198,034.54 × 117,699.66
  4. Step 4: Simplify right side
    143,637.54x = 23,308,598,026.26
  5. Step 5: Solve for x
    x = 23,308,598,026.26/143,637.54
  6. Step 6: Final answer
    x = 162,273.72

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1.5x scale

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.