Home / 191,018.14-263,685.84-128,942.17

Finding the Fourth Proportional to 191,018.14, 263,685.84 and 128,942.17

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Solution

The fourth proportional to 191,018.14, 263,685.84 and 128,942.17 is: 177,994.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,018.14 : 263,685.84 = 128,942.17 : x
  2. Step 2: Convert to fraction form
    191,018.14/263,685.84 = 128,942.17/x
  3. Step 3: Cross multiply
    191,018.14x = 263,685.84 × 128,942.17
  4. Step 4: Simplify right side
    191,018.14x = 34,000,224,407.87
  5. Step 5: Solve for x
    x = 34,000,224,407.87/191,018.14
  6. Step 6: Final answer
    x = 177,994.74

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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.