Home / 153,217.61-229,536.62-86,705.47

Finding the Fourth Proportional to 153,217.61, 229,536.62 and 86,705.47

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Solution

The fourth proportional to 153,217.61, 229,536.62 and 86,705.47 is: 129,894.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,217.61 : 229,536.62 = 86,705.47 : x
  2. Step 2: Convert to fraction form
    153,217.61/229,536.62 = 86,705.47/x
  3. Step 3: Cross multiply
    153,217.61x = 229,536.62 × 86,705.47
  4. Step 4: Simplify right side
    153,217.61x = 19,902,080,697.85
  5. Step 5: Solve for x
    x = 19,902,080,697.85/153,217.61
  6. Step 6: Final answer
    x = 129,894.21

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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.