Home / 158,911.24-219,393.84-105,242.28

Finding the Fourth Proportional to 158,911.24, 219,393.84 and 105,242.28

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Solution

The fourth proportional to 158,911.24, 219,393.84 and 105,242.28 is: 145,298.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,911.24 : 219,393.84 = 105,242.28 : x
  2. Step 2: Convert to fraction form
    158,911.24/219,393.84 = 105,242.28/x
  3. Step 3: Cross multiply
    158,911.24x = 219,393.84 × 105,242.28
  4. Step 4: Simplify right side
    158,911.24x = 23,089,507,939.56
  5. Step 5: Solve for x
    x = 23,089,507,939.56/158,911.24
  6. Step 6: Final answer
    x = 145,298.14

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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.