Home / 111,526.40-167,289.60-102,540.80

Finding the Fourth Proportional to 111,526.40, 167,289.60 and 102,540.80

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Solution

The fourth proportional to 111,526.40, 167,289.60 and 102,540.80 is: 153,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,526.40 : 167,289.60 = 102,540.80 : x
  2. Step 2: Convert to fraction form
    111,526.40/167,289.60 = 102,540.80/x
  3. Step 3: Cross multiply
    111,526.40x = 167,289.60 × 102,540.80
  4. Step 4: Simplify right side
    111,526.40x = 17,154,009,415.68
  5. Step 5: Solve for x
    x = 17,154,009,415.68/111,526.40
  6. Step 6: Final answer
    x = 153,811.20

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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.