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Finding the Fourth Proportional to 105,450.92, 145,525.92 and 60,135.74

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Solution

The fourth proportional to 105,450.92, 145,525.92 and 60,135.74 is: 82,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,450.92 : 145,525.92 = 60,135.74 : x
  2. Step 2: Convert to fraction form
    105,450.92/145,525.92 = 60,135.74/x
  3. Step 3: Cross multiply
    105,450.92x = 145,525.92 × 60,135.74
  4. Step 4: Simplify right side
    105,450.92x = 8,751,308,888.38
  5. Step 5: Solve for x
    x = 8,751,308,888.38/105,450.92
  6. Step 6: Final answer
    x = 82,989.40

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1.5x scale

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.