Home / 118,118.88-177,112.59-70,107.00

Finding the Fourth Proportional to 118,118.88, 177,112.59 and 70,107.00

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Solution

The fourth proportional to 118,118.88, 177,112.59 and 70,107.00 is: 105,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,118.88 : 177,112.59 = 70,107.00 : x
  2. Step 2: Convert to fraction form
    118,118.88/177,112.59 = 70,107.00/x
  3. Step 3: Cross multiply
    118,118.88x = 177,112.59 × 70,107.00
  4. Step 4: Simplify right side
    118,118.88x = 12,416,831,814.41
  5. Step 5: Solve for x
    x = 12,416,831,814.41/118,118.88
  6. Step 6: Final answer
    x = 105,121.49

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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.