Home / 118,228.20-177,050.70-78,570.60

Finding the Fourth Proportional to 118,228.20, 177,050.70 and 78,570.60

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Solution

The fourth proportional to 118,228.20, 177,050.70 and 78,570.60 is: 117,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,228.20 : 177,050.70 = 78,570.60 : x
  2. Step 2: Convert to fraction form
    118,228.20/177,050.70 = 78,570.60/x
  3. Step 3: Cross multiply
    118,228.20x = 177,050.70 × 78,570.60
  4. Step 4: Simplify right side
    118,228.20x = 13,910,979,729.42
  5. Step 5: Solve for x
    x = 13,910,979,729.42/118,228.20
  6. Step 6: Final answer
    x = 117,662.11

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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.