Home / 105,185.58-145,184.67-62,745.90

Finding the Fourth Proportional to 105,185.58, 145,184.67 and 62,745.90

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Solution

The fourth proportional to 105,185.58, 145,184.67 and 62,745.90 is: 86,606.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,185.58 : 145,184.67 = 62,745.90 : x
  2. Step 2: Convert to fraction form
    105,185.58/145,184.67 = 62,745.90/x
  3. Step 3: Cross multiply
    105,185.58x = 145,184.67 × 62,745.90
  4. Step 4: Simplify right side
    105,185.58x = 9,109,742,785.35
  5. Step 5: Solve for x
    x = 9,109,742,785.35/105,185.58
  6. Step 6: Final answer
    x = 86,606.38

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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.