Home / 214,640.94-296,235.30-128,603.34

Finding the Fourth Proportional to 214,640.94, 296,235.30 and 128,603.34

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Solution

The fourth proportional to 214,640.94, 296,235.30 and 128,603.34 is: 177,491.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,640.94 : 296,235.30 = 128,603.34 : x
  2. Step 2: Convert to fraction form
    214,640.94/296,235.30 = 128,603.34/x
  3. Step 3: Cross multiply
    214,640.94x = 296,235.30 × 128,603.34
  4. Step 4: Simplify right side
    214,640.94x = 38,096,849,005.90
  5. Step 5: Solve for x
    x = 38,096,849,005.90/214,640.94
  6. Step 6: Final answer
    x = 177,491.06

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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.