Home / 128,934.89-177,935.30-70,793.94

Finding the Fourth Proportional to 128,934.89, 177,935.30 and 70,793.94

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Solution

The fourth proportional to 128,934.89, 177,935.30 and 70,793.94 is: 97,698.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,934.89 : 177,935.30 = 70,793.94 : x
  2. Step 2: Convert to fraction form
    128,934.89/177,935.30 = 70,793.94/x
  3. Step 3: Cross multiply
    128,934.89x = 177,935.30 × 70,793.94
  4. Step 4: Simplify right side
    128,934.89x = 12,596,741,265.37
  5. Step 5: Solve for x
    x = 12,596,741,265.37/128,934.89
  6. Step 6: Final answer
    x = 97,698.47

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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.