Home / 102,971.25-154,457.79-40,641.75

Finding the Fourth Proportional to 102,971.25, 154,457.79 and 40,641.75

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Solution

The fourth proportional to 102,971.25, 154,457.79 and 40,641.75 is: 60,962.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,971.25 : 154,457.79 = 40,641.75 : x
  2. Step 2: Convert to fraction form
    102,971.25/154,457.79 = 40,641.75/x
  3. Step 3: Cross multiply
    102,971.25x = 154,457.79 × 40,641.75
  4. Step 4: Simplify right side
    102,971.25x = 6,277,434,734.33
  5. Step 5: Solve for x
    x = 6,277,434,734.33/102,971.25
  6. Step 6: Final answer
    x = 60,962.98

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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.