Home / 105,313.74-145,333.23-62,871.30

Finding the Fourth Proportional to 105,313.74, 145,333.23 and 62,871.30

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Solution

The fourth proportional to 105,313.74, 145,333.23 and 62,871.30 is: 86,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,313.74 : 145,333.23 = 62,871.30 : x
  2. Step 2: Convert to fraction form
    105,313.74/145,333.23 = 62,871.30/x
  3. Step 3: Cross multiply
    105,313.74x = 145,333.23 × 62,871.30
  4. Step 4: Simplify right side
    105,313.74x = 9,137,289,103.30
  5. Step 5: Solve for x
    x = 9,137,289,103.30/105,313.74
  6. Step 6: Final answer
    x = 86,762.55

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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.