Home / 153,049.23-211,197.69-85,061.79

Finding the Fourth Proportional to 153,049.23, 211,197.69 and 85,061.79

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Solution

The fourth proportional to 153,049.23, 211,197.69 and 85,061.79 is: 117,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,049.23 : 211,197.69 = 85,061.79 : x
  2. Step 2: Convert to fraction form
    153,049.23/211,197.69 = 85,061.79/x
  3. Step 3: Cross multiply
    153,049.23x = 211,197.69 × 85,061.79
  4. Step 4: Simplify right side
    153,049.23x = 17,964,853,555.27
  5. Step 5: Solve for x
    x = 17,964,853,555.27/153,049.23
  6. Step 6: Final answer
    x = 117,379.57

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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.