Home / 111,935.60-167,903.40-76,506.20

Finding the Fourth Proportional to 111,935.60, 167,903.40 and 76,506.20

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Solution

The fourth proportional to 111,935.60, 167,903.40 and 76,506.20 is: 114,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,935.60 : 167,903.40 = 76,506.20 : x
  2. Step 2: Convert to fraction form
    111,935.60/167,903.40 = 76,506.20/x
  3. Step 3: Cross multiply
    111,935.60x = 167,903.40 × 76,506.20
  4. Step 4: Simplify right side
    111,935.60x = 12,845,651,101.08
  5. Step 5: Solve for x
    x = 12,845,651,101.08/111,935.60
  6. Step 6: Final answer
    x = 114,759.30

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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.