Home / 210,214.40-315,134.06-77,063.56

Finding the Fourth Proportional to 210,214.40, 315,134.06 and 77,063.56

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Solution

The fourth proportional to 210,214.40, 315,134.06 and 77,063.56 is: 115,526.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,214.40 : 315,134.06 = 77,063.56 : x
  2. Step 2: Convert to fraction form
    210,214.40/315,134.06 = 77,063.56/x
  3. Step 3: Cross multiply
    210,214.40x = 315,134.06 × 77,063.56
  4. Step 4: Simplify right side
    210,214.40x = 24,285,351,367.70
  5. Step 5: Solve for x
    x = 24,285,351,367.70/210,214.40
  6. Step 6: Final answer
    x = 115,526.59

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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.