Home / 210,222.90-315,146.87-77,072.13

Finding the Fourth Proportional to 210,222.90, 315,146.87 and 77,072.13

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Solution

The fourth proportional to 210,222.90, 315,146.87 and 77,072.13 is: 115,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,222.90 : 315,146.87 = 77,072.13 : x
  2. Step 2: Convert to fraction form
    210,222.90/315,146.87 = 77,072.13/x
  3. Step 3: Cross multiply
    210,222.90x = 315,146.87 × 77,072.13
  4. Step 4: Simplify right side
    210,222.90x = 24,289,040,437.39
  5. Step 5: Solve for x
    x = 24,289,040,437.39/210,222.90
  6. Step 6: Final answer
    x = 115,539.46

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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.