Home / 515,768.88-773,616.81-136,681.23

Finding the Fourth Proportional to 515,768.88, 773,616.81 and 136,681.23

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Solution

The fourth proportional to 515,768.88, 773,616.81 and 136,681.23 is: 205,012.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,768.88 : 773,616.81 = 136,681.23 : x
  2. Step 2: Convert to fraction form
    515,768.88/773,616.81 = 136,681.23/x
  3. Step 3: Cross multiply
    515,768.88x = 773,616.81 × 136,681.23
  4. Step 4: Simplify right side
    515,768.88x = 105,738,897,139.48
  5. Step 5: Solve for x
    x = 105,738,897,139.48/515,768.88
  6. Step 6: Final answer
    x = 205,012.17

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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.