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Finding the Fourth Proportional to 175,959.78, 242,918.72 and 137,637.91

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Solution

The fourth proportional to 175,959.78, 242,918.72 and 137,637.91 is: 190,014.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,959.78 : 242,918.72 = 137,637.91 : x
  2. Step 2: Convert to fraction form
    175,959.78/242,918.72 = 137,637.91/x
  3. Step 3: Cross multiply
    175,959.78x = 242,918.72 × 137,637.91
  4. Step 4: Simplify right side
    175,959.78x = 33,434,823,552.07
  5. Step 5: Solve for x
    x = 33,434,823,552.07/175,959.78
  6. Step 6: Final answer
    x = 190,014.01

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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.