Home / 135,914.49-203,895.43-51,681.88

Finding the Fourth Proportional to 135,914.49, 203,895.43 and 51,681.88

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Solution

The fourth proportional to 135,914.49, 203,895.43 and 51,681.88 is: 77,531.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,914.49 : 203,895.43 = 51,681.88 : x
  2. Step 2: Convert to fraction form
    135,914.49/203,895.43 = 51,681.88/x
  3. Step 3: Cross multiply
    135,914.49x = 203,895.43 × 51,681.88
  4. Step 4: Simplify right side
    135,914.49x = 10,537,699,271.47
  5. Step 5: Solve for x
    x = 10,537,699,271.47/135,914.49
  6. Step 6: Final answer
    x = 77,531.83

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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.