Home / 192,541.19-288,705.08-78,768.88

Finding the Fourth Proportional to 192,541.19, 288,705.08 and 78,768.88

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Solution

The fourth proportional to 192,541.19, 288,705.08 and 78,768.88 is: 118,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,541.19 : 288,705.08 = 78,768.88 : x
  2. Step 2: Convert to fraction form
    192,541.19/288,705.08 = 78,768.88/x
  3. Step 3: Cross multiply
    192,541.19x = 288,705.08 × 78,768.88
  4. Step 4: Simplify right side
    192,541.19x = 22,740,975,277.07
  5. Step 5: Solve for x
    x = 22,740,975,277.07/192,541.19
  6. Step 6: Final answer
    x = 118,109.67

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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.