Home / 109,014.56-150,328.08-91,102.88

Finding the Fourth Proportional to 109,014.56, 150,328.08 and 91,102.88

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Solution

The fourth proportional to 109,014.56, 150,328.08 and 91,102.88 is: 125,628.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,014.56 : 150,328.08 = 91,102.88 : x
  2. Step 2: Convert to fraction form
    109,014.56/150,328.08 = 91,102.88/x
  3. Step 3: Cross multiply
    109,014.56x = 150,328.08 × 91,102.88
  4. Step 4: Simplify right side
    109,014.56x = 13,695,321,032.87
  5. Step 5: Solve for x
    x = 13,695,321,032.87/109,014.56
  6. Step 6: Final answer
    x = 125,628.37

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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.