Home / 119,256.36-178,890-84,351.84

Finding the Fourth Proportional to 119,256.36, 178,890 and 84,351.84

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Solution

The fourth proportional to 119,256.36, 178,890 and 84,351.84 is: 126,531.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,256.36 : 178,890 = 84,351.84 : x
  2. Step 2: Convert to fraction form
    119,256.36/178,890 = 84,351.84/x
  3. Step 3: Cross multiply
    119,256.36x = 178,890 × 84,351.84
  4. Step 4: Simplify right side
    119,256.36x = 15,089,700,657.60
  5. Step 5: Solve for x
    x = 15,089,700,657.60/119,256.36
  6. Step 6: Final answer
    x = 126,531.62

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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.