Home / 105,266.93-145,266.62-57,519.18

Finding the Fourth Proportional to 105,266.93, 145,266.62 and 57,519.18

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Solution

The fourth proportional to 105,266.93, 145,266.62 and 57,519.18 is: 79,375.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,266.93 : 145,266.62 = 57,519.18 : x
  2. Step 2: Convert to fraction form
    105,266.93/145,266.62 = 57,519.18/x
  3. Step 3: Cross multiply
    105,266.93x = 145,266.62 × 57,519.18
  4. Step 4: Simplify right side
    105,266.93x = 8,355,616,576.18
  5. Step 5: Solve for x
    x = 8,355,616,576.18/105,266.93
  6. Step 6: Final answer
    x = 79,375.52

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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.