Home / 163,583.49-225,742.99-90,985.69

Finding the Fourth Proportional to 163,583.49, 225,742.99 and 90,985.69

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Solution

The fourth proportional to 163,583.49, 225,742.99 and 90,985.69 is: 125,559.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,583.49 : 225,742.99 = 90,985.69 : x
  2. Step 2: Convert to fraction form
    163,583.49/225,742.99 = 90,985.69/x
  3. Step 3: Cross multiply
    163,583.49x = 225,742.99 × 90,985.69
  4. Step 4: Simplify right side
    163,583.49x = 20,539,380,915.99
  5. Step 5: Solve for x
    x = 20,539,380,915.99/163,583.49
  6. Step 6: Final answer
    x = 125,559.01

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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.