Home / 185,140.18-277,653.42-78,522.21

Finding the Fourth Proportional to 185,140.18, 277,653.42 and 78,522.21

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Solution

The fourth proportional to 185,140.18, 277,653.42 and 78,522.21 is: 117,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,140.18 : 277,653.42 = 78,522.21 : x
  2. Step 2: Convert to fraction form
    185,140.18/277,653.42 = 78,522.21/x
  3. Step 3: Cross multiply
    185,140.18x = 277,653.42 × 78,522.21
  4. Step 4: Simplify right side
    185,140.18x = 21,801,960,152.46
  5. Step 5: Solve for x
    x = 21,801,960,152.46/185,140.18
  6. Step 6: Final answer
    x = 117,759.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.