Home / 105,087.56-157,639.10-30,204.68

Finding the Fourth Proportional to 105,087.56, 157,639.10 and 30,204.68

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Solution

The fourth proportional to 105,087.56, 157,639.10 and 30,204.68 is: 45,309.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,087.56 : 157,639.10 = 30,204.68 : x
  2. Step 2: Convert to fraction form
    105,087.56/157,639.10 = 30,204.68/x
  3. Step 3: Cross multiply
    105,087.56x = 157,639.10 × 30,204.68
  4. Step 4: Simplify right side
    105,087.56x = 4,761,438,570.99
  5. Step 5: Solve for x
    x = 4,761,438,570.99/105,087.56
  6. Step 6: Final answer
    x = 45,309.25

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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.