Home / 106,977.96-147,539.90-68,743.72

Finding the Fourth Proportional to 106,977.96, 147,539.90 and 68,743.72

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Solution

The fourth proportional to 106,977.96, 147,539.90 and 68,743.72 is: 94,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,977.96 : 147,539.90 = 68,743.72 : x
  2. Step 2: Convert to fraction form
    106,977.96/147,539.90 = 68,743.72/x
  3. Step 3: Cross multiply
    106,977.96x = 147,539.90 × 68,743.72
  4. Step 4: Simplify right side
    106,977.96x = 10,142,441,574.43
  5. Step 5: Solve for x
    x = 10,142,441,574.43/106,977.96
  6. Step 6: Final answer
    x = 94,808.70

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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.