Home / 191,017.14-263,684.46-128,941.17

Finding the Fourth Proportional to 191,017.14, 263,684.46 and 128,941.17

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Solution

The fourth proportional to 191,017.14, 263,684.46 and 128,941.17 is: 177,993.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,017.14 : 263,684.46 = 128,941.17 : x
  2. Step 2: Convert to fraction form
    191,017.14/263,684.46 = 128,941.17/x
  3. Step 3: Cross multiply
    191,017.14x = 263,684.46 × 128,941.17
  4. Step 4: Simplify right side
    191,017.14x = 33,999,782,277.93
  5. Step 5: Solve for x
    x = 33,999,782,277.93/191,017.14
  6. Step 6: Final answer
    x = 177,993.36

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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.