Home / 190,461.36-285,751.28-78,150.71

Finding the Fourth Proportional to 190,461.36, 285,751.28 and 78,150.71

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Solution

The fourth proportional to 190,461.36, 285,751.28 and 78,150.71 is: 117,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,461.36 : 285,751.28 = 78,150.71 : x
  2. Step 2: Convert to fraction form
    190,461.36/285,751.28 = 78,150.71/x
  3. Step 3: Cross multiply
    190,461.36x = 285,751.28 × 78,150.71
  4. Step 4: Simplify right side
    190,461.36x = 22,331,665,415.41
  5. Step 5: Solve for x
    x = 22,331,665,415.41/190,461.36
  6. Step 6: Final answer
    x = 117,250.37

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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.