Home / 153,218.73-229,538.33-86,706.60

Finding the Fourth Proportional to 153,218.73, 229,538.33 and 86,706.60

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Solution

The fourth proportional to 153,218.73, 229,538.33 and 86,706.60 is: 129,895.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,218.73 : 229,538.33 = 86,706.60 : x
  2. Step 2: Convert to fraction form
    153,218.73/229,538.33 = 86,706.60/x
  3. Step 3: Cross multiply
    153,218.73x = 229,538.33 × 86,706.60
  4. Step 4: Simplify right side
    153,218.73x = 19,902,487,730.45
  5. Step 5: Solve for x
    x = 19,902,487,730.45/153,218.73
  6. Step 6: Final answer
    x = 129,895.92

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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.