Home / 111,530.40-167,295.60-102,890.40

Finding the Fourth Proportional to 111,530.40, 167,295.60 and 102,890.40

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Solution

The fourth proportional to 111,530.40, 167,295.60 and 102,890.40 is: 154,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,530.40 : 167,295.60 = 102,890.40 : x
  2. Step 2: Convert to fraction form
    111,530.40/167,295.60 = 102,890.40/x
  3. Step 3: Cross multiply
    111,530.40x = 167,295.60 × 102,890.40
  4. Step 4: Simplify right side
    111,530.40x = 17,213,111,202.24
  5. Step 5: Solve for x
    x = 17,213,111,202.24/111,530.40
  6. Step 6: Final answer
    x = 154,335.60

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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.