Home / 133,031.84-199,547.20-54,127.36

Finding the Fourth Proportional to 133,031.84, 199,547.20 and 54,127.36

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Solution

The fourth proportional to 133,031.84, 199,547.20 and 54,127.36 is: 81,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,031.84 : 199,547.20 = 54,127.36 : x
  2. Step 2: Convert to fraction form
    133,031.84/199,547.20 = 54,127.36/x
  3. Step 3: Cross multiply
    133,031.84x = 199,547.20 × 54,127.36
  4. Step 4: Simplify right side
    133,031.84x = 10,800,963,131.39
  5. Step 5: Solve for x
    x = 10,800,963,131.39/133,031.84
  6. Step 6: Final answer
    x = 81,190.81

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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.