Home / 105,259.88-157,900.32-30,381.84

Finding the Fourth Proportional to 105,259.88, 157,900.32 and 30,381.84

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Solution

The fourth proportional to 105,259.88, 157,900.32 and 30,381.84 is: 45,575.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,259.88 : 157,900.32 = 30,381.84 : x
  2. Step 2: Convert to fraction form
    105,259.88/157,900.32 = 30,381.84/x
  3. Step 3: Cross multiply
    105,259.88x = 157,900.32 × 30,381.84
  4. Step 4: Simplify right side
    105,259.88x = 4,797,302,258.19
  5. Step 5: Solve for x
    x = 4,797,302,258.19/105,259.88
  6. Step 6: Final answer
    x = 45,575.79

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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.