Home / 163,401.58-225,499.66-90,807.54

Finding the Fourth Proportional to 163,401.58, 225,499.66 and 90,807.54

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Solution

The fourth proportional to 163,401.58, 225,499.66 and 90,807.54 is: 125,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,401.58 : 225,499.66 = 90,807.54 : x
  2. Step 2: Convert to fraction form
    163,401.58/225,499.66 = 90,807.54/x
  3. Step 3: Cross multiply
    163,401.58x = 225,499.66 × 90,807.54
  4. Step 4: Simplify right side
    163,401.58x = 20,477,069,395.44
  5. Step 5: Solve for x
    x = 20,477,069,395.44/163,401.58
  6. Step 6: Final answer
    x = 125,317.45

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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.