Home / 105,091.81-157,633.31-48,912.60

Finding the Fourth Proportional to 105,091.81, 157,633.31 and 48,912.60

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Solution

The fourth proportional to 105,091.81, 157,633.31 and 48,912.60 is: 73,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,091.81 : 157,633.31 = 48,912.60 : x
  2. Step 2: Convert to fraction form
    105,091.81/157,633.31 = 48,912.60/x
  3. Step 3: Cross multiply
    105,091.81x = 157,633.31 × 48,912.60
  4. Step 4: Simplify right side
    105,091.81x = 7,710,254,203.02
  5. Step 5: Solve for x
    x = 7,710,254,203.02/105,091.81
  6. Step 6: Final answer
    x = 73,366.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.