Home / 112,173.21-154,643.99-89,588.25

Finding the Fourth Proportional to 112,173.21, 154,643.99 and 89,588.25

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Solution

The fourth proportional to 112,173.21, 154,643.99 and 89,588.25 is: 123,507.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,173.21 : 154,643.99 = 89,588.25 : x
  2. Step 2: Convert to fraction form
    112,173.21/154,643.99 = 89,588.25/x
  3. Step 3: Cross multiply
    112,173.21x = 154,643.99 × 89,588.25
  4. Step 4: Simplify right side
    112,173.21x = 13,854,283,989.18
  5. Step 5: Solve for x
    x = 13,854,283,989.18/112,173.21
  6. Step 6: Final answer
    x = 123,507.96

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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.