Home / 236,855.18-355,282.78-66,070.20

Finding the Fourth Proportional to 236,855.18, 355,282.78 and 66,070.20

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Solution

The fourth proportional to 236,855.18, 355,282.78 and 66,070.20 is: 99,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,855.18 : 355,282.78 = 66,070.20 : x
  2. Step 2: Convert to fraction form
    236,855.18/355,282.78 = 66,070.20/x
  3. Step 3: Cross multiply
    236,855.18x = 355,282.78 × 66,070.20
  4. Step 4: Simplify right side
    236,855.18x = 23,473,604,331.16
  5. Step 5: Solve for x
    x = 23,473,604,331.16/236,855.18
  6. Step 6: Final answer
    x = 99,105.30

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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.