Home / 190,136.80-285,220.05-84,966.40

Finding the Fourth Proportional to 190,136.80, 285,220.05 and 84,966.40

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Solution

The fourth proportional to 190,136.80, 285,220.05 and 84,966.40 is: 127,456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,136.80 : 285,220.05 = 84,966.40 : x
  2. Step 2: Convert to fraction form
    190,136.80/285,220.05 = 84,966.40/x
  3. Step 3: Cross multiply
    190,136.80x = 285,220.05 × 84,966.40
  4. Step 4: Simplify right side
    190,136.80x = 24,234,120,856.32
  5. Step 5: Solve for x
    x = 24,234,120,856.32/190,136.80
  6. Step 6: Final answer
    x = 127,456.24

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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.