Home / 118,203.48-177,379.05-78,788.28

Finding the Fourth Proportional to 118,203.48, 177,379.05 and 78,788.28

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Solution

The fourth proportional to 118,203.48, 177,379.05 and 78,788.28 is: 118,231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,203.48 : 177,379.05 = 78,788.28 : x
  2. Step 2: Convert to fraction form
    118,203.48/177,379.05 = 78,788.28/x
  3. Step 3: Cross multiply
    118,203.48x = 177,379.05 × 78,788.28
  4. Step 4: Simplify right side
    118,203.48x = 13,975,390,257.53
  5. Step 5: Solve for x
    x = 13,975,390,257.53/118,203.48
  6. Step 6: Final answer
    x = 118,231.63

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1.5x scale

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.