Home / 153,996.57-212,500.26-86,008.14

Finding the Fourth Proportional to 153,996.57, 212,500.26 and 86,008.14

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Solution

The fourth proportional to 153,996.57, 212,500.26 and 86,008.14 is: 118,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,996.57 : 212,500.26 = 86,008.14 : x
  2. Step 2: Convert to fraction form
    153,996.57/212,500.26 = 86,008.14/x
  3. Step 3: Cross multiply
    153,996.57x = 212,500.26 × 86,008.14
  4. Step 4: Simplify right side
    153,996.57x = 18,276,752,112.12
  5. Step 5: Solve for x
    x = 18,276,752,112.12/153,996.57
  6. Step 6: Final answer
    x = 118,682.85

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1.5x scale

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.