Home / 190,803.20-286,204.80-57,776.90

Finding the Fourth Proportional to 190,803.20, 286,204.80 and 57,776.90

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Solution

The fourth proportional to 190,803.20, 286,204.80 and 57,776.90 is: 86,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,803.20 : 286,204.80 = 57,776.90 : x
  2. Step 2: Convert to fraction form
    190,803.20/286,204.80 = 57,776.90/x
  3. Step 3: Cross multiply
    190,803.20x = 286,204.80 × 57,776.90
  4. Step 4: Simplify right side
    190,803.20x = 16,536,026,109.12
  5. Step 5: Solve for x
    x = 16,536,026,109.12/190,803.20
  6. Step 6: Final answer
    x = 86,665.35

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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.