Home / 153,270.44-211,516.11-85,290.29

Finding the Fourth Proportional to 153,270.44, 211,516.11 and 85,290.29

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Solution

The fourth proportional to 153,270.44, 211,516.11 and 85,290.29 is: 117,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,270.44 : 211,516.11 = 85,290.29 : x
  2. Step 2: Convert to fraction form
    153,270.44/211,516.11 = 85,290.29/x
  3. Step 3: Cross multiply
    153,270.44x = 211,516.11 × 85,290.29
  4. Step 4: Simplify right side
    153,270.44x = 18,040,269,303.99
  5. Step 5: Solve for x
    x = 18,040,269,303.99/153,270.44
  6. Step 6: Final answer
    x = 117,702.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.