Home / 105,213.94-145,198.36-57,468.08

Finding the Fourth Proportional to 105,213.94, 145,198.36 and 57,468.08

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Solution

The fourth proportional to 105,213.94, 145,198.36 and 57,468.08 is: 79,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,213.94 : 145,198.36 = 57,468.08 : x
  2. Step 2: Convert to fraction form
    105,213.94/145,198.36 = 57,468.08/x
  3. Step 3: Cross multiply
    105,213.94x = 145,198.36 × 57,468.08
  4. Step 4: Simplify right side
    105,213.94x = 8,344,270,968.35
  5. Step 5: Solve for x
    x = 8,344,270,968.35/105,213.94
  6. Step 6: Final answer
    x = 79,307.66

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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.