Home / 153,148.34-211,344.90-85,163.88

Finding the Fourth Proportional to 153,148.34, 211,344.90 and 85,163.88

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Solution

The fourth proportional to 153,148.34, 211,344.90 and 85,163.88 is: 117,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,148.34 : 211,344.90 = 85,163.88 : x
  2. Step 2: Convert to fraction form
    153,148.34/211,344.90 = 85,163.88/x
  3. Step 3: Cross multiply
    153,148.34x = 211,344.90 × 85,163.88
  4. Step 4: Simplify right side
    153,148.34x = 17,998,951,702.21
  5. Step 5: Solve for x
    x = 17,998,951,702.21/153,148.34
  6. Step 6: Final answer
    x = 117,526.26

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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.