Home / 153,534.51-211,878.09-89,016.30

Finding the Fourth Proportional to 153,534.51, 211,878.09 and 89,016.30

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Solution

The fourth proportional to 153,534.51, 211,878.09 and 89,016.30 is: 122,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,534.51 : 211,878.09 = 89,016.30 : x
  2. Step 2: Convert to fraction form
    153,534.51/211,878.09 = 89,016.30/x
  3. Step 3: Cross multiply
    153,534.51x = 211,878.09 × 89,016.30
  4. Step 4: Simplify right side
    153,534.51x = 18,860,603,622.87
  5. Step 5: Solve for x
    x = 18,860,603,622.87/153,534.51
  6. Step 6: Final answer
    x = 122,842.76

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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.