Home / 117,725.45-162,459.89-87,645.29

Finding the Fourth Proportional to 117,725.45, 162,459.89 and 87,645.29

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Solution

The fourth proportional to 117,725.45, 162,459.89 and 87,645.29 is: 120,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,725.45 : 162,459.89 = 87,645.29 : x
  2. Step 2: Convert to fraction form
    117,725.45/162,459.89 = 87,645.29/x
  3. Step 3: Cross multiply
    117,725.45x = 162,459.89 × 87,645.29
  4. Step 4: Simplify right side
    117,725.45x = 14,238,843,579.23
  5. Step 5: Solve for x
    x = 14,238,843,579.23/117,725.45
  6. Step 6: Final answer
    x = 120,949.58

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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.