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Finding the Fourth Proportional to 143,477.92, 197,881.62 and 127,357

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Solution

The fourth proportional to 143,477.92, 197,881.62 and 127,357 is: 175,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,477.92 : 197,881.62 = 127,357 : x
  2. Step 2: Convert to fraction form
    143,477.92/197,881.62 = 127,357/x
  3. Step 3: Cross multiply
    143,477.92x = 197,881.62 × 127,357
  4. Step 4: Simplify right side
    143,477.92x = 25,201,609,478.34
  5. Step 5: Solve for x
    x = 25,201,609,478.34/143,477.92
  6. Step 6: Final answer
    x = 175,648.00

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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.