Home / 158,331.23-218,492.21-86,709.41

Finding the Fourth Proportional to 158,331.23, 218,492.21 and 86,709.41

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Solution

The fourth proportional to 158,331.23, 218,492.21 and 86,709.41 is: 119,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,331.23 : 218,492.21 = 86,709.41 : x
  2. Step 2: Convert to fraction form
    158,331.23/218,492.21 = 86,709.41/x
  3. Step 3: Cross multiply
    158,331.23x = 218,492.21 × 86,709.41
  4. Step 4: Simplify right side
    158,331.23x = 18,945,330,185.15
  5. Step 5: Solve for x
    x = 18,945,330,185.15/158,331.23
  6. Step 6: Final answer
    x = 119,656.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.