Home / 210,612.03-315,973.44-75,689.73

Finding the Fourth Proportional to 210,612.03, 315,973.44 and 75,689.73

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Solution

The fourth proportional to 210,612.03, 315,973.44 and 75,689.73 is: 113,554.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,612.03 : 315,973.44 = 75,689.73 : x
  2. Step 2: Convert to fraction form
    210,612.03/315,973.44 = 75,689.73/x
  3. Step 3: Cross multiply
    210,612.03x = 315,973.44 × 75,689.73
  4. Step 4: Simplify right side
    210,612.03x = 23,915,944,360.77
  5. Step 5: Solve for x
    x = 23,915,944,360.77/210,612.03
  6. Step 6: Final answer
    x = 113,554.50

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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.