Home / 120,200.51-180,389.36-57,020.83

Finding the Fourth Proportional to 120,200.51, 180,389.36 and 57,020.83

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Solution

The fourth proportional to 120,200.51, 180,389.36 and 57,020.83 is: 85,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,200.51 : 180,389.36 = 57,020.83 : x
  2. Step 2: Convert to fraction form
    120,200.51/180,389.36 = 57,020.83/x
  3. Step 3: Cross multiply
    120,200.51x = 180,389.36 × 57,020.83
  4. Step 4: Simplify right side
    120,200.51x = 10,285,950,721.95
  5. Step 5: Solve for x
    x = 10,285,950,721.95/120,200.51
  6. Step 6: Final answer
    x = 85,573.27

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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.