Home / 237,722.70-328,056.66-128,830.05

Finding the Fourth Proportional to 237,722.70, 328,056.66 and 128,830.05

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Solution

The fourth proportional to 237,722.70, 328,056.66 and 128,830.05 is: 177,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,722.70 : 328,056.66 = 128,830.05 : x
  2. Step 2: Convert to fraction form
    237,722.70/328,056.66 = 128,830.05/x
  3. Step 3: Cross multiply
    237,722.70x = 328,056.66 × 128,830.05
  4. Step 4: Simplify right side
    237,722.70x = 42,263,555,910.63
  5. Step 5: Solve for x
    x = 42,263,555,910.63/237,722.70
  6. Step 6: Final answer
    x = 177,785.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.