Home / 70,109.37-105,164.06-17,518.86

Finding the Fourth Proportional to 70,109.37, 105,164.06 and 17,518.86

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Solution

The fourth proportional to 70,109.37, 105,164.06 and 17,518.86 is: 26,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,109.37 : 105,164.06 = 17,518.86 : x
  2. Step 2: Convert to fraction form
    70,109.37/105,164.06 = 17,518.86/x
  3. Step 3: Cross multiply
    70,109.37x = 105,164.06 × 17,518.86
  4. Step 4: Simplify right side
    70,109.37x = 1,842,354,356.58
  5. Step 5: Solve for x
    x = 1,842,354,356.58/70,109.37
  6. Step 6: Final answer
    x = 26,278.29

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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.