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Finding the Fourth Proportional to 200,159.79, 300,192.51 and 73,731.36

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Solution

The fourth proportional to 200,159.79, 300,192.51 and 73,731.36 is: 110,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,159.79 : 300,192.51 = 73,731.36 : x
  2. Step 2: Convert to fraction form
    200,159.79/300,192.51 = 73,731.36/x
  3. Step 3: Cross multiply
    200,159.79x = 300,192.51 × 73,731.36
  4. Step 4: Simplify right side
    200,159.79x = 22,133,602,024.11
  5. Step 5: Solve for x
    x = 22,133,602,024.11/200,159.79
  6. Step 6: Final answer
    x = 110,579.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.