Home / 190,634.94-286,044.75-78,398.10

Finding the Fourth Proportional to 190,634.94, 286,044.75 and 78,398.10

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Solution

The fourth proportional to 190,634.94, 286,044.75 and 78,398.10 is: 117,635.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,634.94 : 286,044.75 = 78,398.10 : x
  2. Step 2: Convert to fraction form
    190,634.94/286,044.75 = 78,398.10/x
  3. Step 3: Cross multiply
    190,634.94x = 286,044.75 × 78,398.10
  4. Step 4: Simplify right side
    190,634.94x = 22,425,364,914.98
  5. Step 5: Solve for x
    x = 22,425,364,914.98/190,634.94
  6. Step 6: Final answer
    x = 117,635.12

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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.