Home / 111,638.12-167,450.40-39,594.60

Finding the Fourth Proportional to 111,638.12, 167,450.40 and 39,594.60

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Solution

The fourth proportional to 111,638.12, 167,450.40 and 39,594.60 is: 59,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,638.12 : 167,450.40 = 39,594.60 : x
  2. Step 2: Convert to fraction form
    111,638.12/167,450.40 = 39,594.60/x
  3. Step 3: Cross multiply
    111,638.12x = 167,450.40 × 39,594.60
  4. Step 4: Simplify right side
    111,638.12x = 6,630,131,607.84
  5. Step 5: Solve for x
    x = 6,630,131,607.84/111,638.12
  6. Step 6: Final answer
    x = 59,389.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.