Home / 153,584.37-211,947.47-85,605.71

Finding the Fourth Proportional to 153,584.37, 211,947.47 and 85,605.71

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Solution

The fourth proportional to 153,584.37, 211,947.47 and 85,605.71 is: 118,136.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,584.37 : 211,947.47 = 85,605.71 : x
  2. Step 2: Convert to fraction form
    153,584.37/211,947.47 = 85,605.71/x
  3. Step 3: Cross multiply
    153,584.37x = 211,947.47 × 85,605.71
  4. Step 4: Simplify right side
    153,584.37x = 18,143,913,753.89
  5. Step 5: Solve for x
    x = 18,143,913,753.89/153,584.37
  6. Step 6: Final answer
    x = 118,136.46

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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.