Home / 105,188.24-157,758.78-30,291.68

Finding the Fourth Proportional to 105,188.24, 157,758.78 and 30,291.68

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Solution

The fourth proportional to 105,188.24, 157,758.78 and 30,291.68 is: 45,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,188.24 : 157,758.78 = 30,291.68 : x
  2. Step 2: Convert to fraction form
    105,188.24/157,758.78 = 30,291.68/x
  3. Step 3: Cross multiply
    105,188.24x = 157,758.78 × 30,291.68
  4. Step 4: Simplify right side
    105,188.24x = 4,778,778,480.95
  5. Step 5: Solve for x
    x = 4,778,778,480.95/105,188.24
  6. Step 6: Final answer
    x = 45,430.73

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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.