Home / 105,039.86-157,485.97-38,471.33

Finding the Fourth Proportional to 105,039.86, 157,485.97 and 38,471.33

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Solution

The fourth proportional to 105,039.86, 157,485.97 and 38,471.33 is: 57,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,039.86 : 157,485.97 = 38,471.33 : x
  2. Step 2: Convert to fraction form
    105,039.86/157,485.97 = 38,471.33/x
  3. Step 3: Cross multiply
    105,039.86x = 157,485.97 × 38,471.33
  4. Step 4: Simplify right side
    105,039.86x = 6,058,695,019.78
  5. Step 5: Solve for x
    x = 6,058,695,019.78/105,039.86
  6. Step 6: Final answer
    x = 57,679.96

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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.