Home / 190,178.24-285,411.92-70,348.57

Finding the Fourth Proportional to 190,178.24, 285,411.92 and 70,348.57

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Solution

The fourth proportional to 190,178.24, 285,411.92 and 70,348.57 is: 105,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,178.24 : 285,411.92 = 70,348.57 : x
  2. Step 2: Convert to fraction form
    190,178.24/285,411.92 = 70,348.57/x
  3. Step 3: Cross multiply
    190,178.24x = 285,411.92 × 70,348.57
  4. Step 4: Simplify right side
    190,178.24x = 20,078,319,367.68
  5. Step 5: Solve for x
    x = 20,078,319,367.68/190,178.24
  6. Step 6: Final answer
    x = 105,576.32

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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.