Home / 153,018.21-211,164.33-84,109.26

Finding the Fourth Proportional to 153,018.21, 211,164.33 and 84,109.26

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Solution

The fourth proportional to 153,018.21, 211,164.33 and 84,109.26 is: 116,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,018.21 : 211,164.33 = 84,109.26 : x
  2. Step 2: Convert to fraction form
    153,018.21/211,164.33 = 84,109.26/x
  3. Step 3: Cross multiply
    153,018.21x = 211,164.33 × 84,109.26
  4. Step 4: Simplify right side
    153,018.21x = 17,760,875,534.70
  5. Step 5: Solve for x
    x = 17,760,875,534.70/153,018.21
  6. Step 6: Final answer
    x = 116,070.34

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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.