Home / 153,270.65-211,513.47-85,292.00

Finding the Fourth Proportional to 153,270.65, 211,513.47 and 85,292.00

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Solution

The fourth proportional to 153,270.65, 211,513.47 and 85,292.00 is: 117,702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,270.65 : 211,513.47 = 85,292.00 : x
  2. Step 2: Convert to fraction form
    153,270.65/211,513.47 = 85,292.00/x
  3. Step 3: Cross multiply
    153,270.65x = 211,513.47 × 85,292.00
  4. Step 4: Simplify right side
    153,270.65x = 18,040,405,825.67
  5. Step 5: Solve for x
    x = 18,040,405,825.67/153,270.65
  6. Step 6: Final answer
    x = 117,702.94

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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.