Home / 190,189.54-285,337.64-76,417.24

Finding the Fourth Proportional to 190,189.54, 285,337.64 and 76,417.24

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Solution

The fourth proportional to 190,189.54, 285,337.64 and 76,417.24 is: 114,647.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,189.54 : 285,337.64 = 76,417.24 : x
  2. Step 2: Convert to fraction form
    190,189.54/285,337.64 = 76,417.24/x
  3. Step 3: Cross multiply
    190,189.54x = 285,337.64 × 76,417.24
  4. Step 4: Simplify right side
    190,189.54x = 21,804,714,916.91
  5. Step 5: Solve for x
    x = 21,804,714,916.91/190,189.54
  6. Step 6: Final answer
    x = 114,647.29

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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.