Home / 107,984.64-148,968-70,245.12

Finding the Fourth Proportional to 107,984.64, 148,968 and 70,245.12

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Solution

The fourth proportional to 107,984.64, 148,968 and 70,245.12 is: 96,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,984.64 : 148,968 = 70,245.12 : x
  2. Step 2: Convert to fraction form
    107,984.64/148,968 = 70,245.12/x
  3. Step 3: Cross multiply
    107,984.64x = 148,968 × 70,245.12
  4. Step 4: Simplify right side
    107,984.64x = 10,464,275,036.16
  5. Step 5: Solve for x
    x = 10,464,275,036.16/107,984.64
  6. Step 6: Final answer
    x = 96,905.22

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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.