Home / 105,206.11-145,194.87-62,764.63

Finding the Fourth Proportional to 105,206.11, 145,194.87 and 62,764.63

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Solution

The fourth proportional to 105,206.11, 145,194.87 and 62,764.63 is: 86,621.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,206.11 : 145,194.87 = 62,764.63 : x
  2. Step 2: Convert to fraction form
    105,206.11/145,194.87 = 62,764.63/x
  3. Step 3: Cross multiply
    105,206.11x = 145,194.87 × 62,764.63
  4. Step 4: Simplify right side
    105,206.11x = 9,113,102,293.45
  5. Step 5: Solve for x
    x = 9,113,102,293.45/105,206.11
  6. Step 6: Final answer
    x = 86,621.42

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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.