Home / 105,164.36-145,157.88-73,343.51

Finding the Fourth Proportional to 105,164.36, 145,157.88 and 73,343.51

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Solution

The fourth proportional to 105,164.36, 145,157.88 and 73,343.51 is: 101,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,164.36 : 145,157.88 = 73,343.51 : x
  2. Step 2: Convert to fraction form
    105,164.36/145,157.88 = 73,343.51/x
  3. Step 3: Cross multiply
    105,164.36x = 145,157.88 × 73,343.51
  4. Step 4: Simplify right side
    105,164.36x = 10,646,388,423.36
  5. Step 5: Solve for x
    x = 10,646,388,423.36/105,164.36
  6. Step 6: Final answer
    x = 101,235.71

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1.5x scale

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.