Home / 109,771.10-151,428.63-73,474.09

Finding the Fourth Proportional to 109,771.10, 151,428.63 and 73,474.09

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Solution

The fourth proportional to 109,771.10, 151,428.63 and 73,474.09 is: 101,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,771.10 : 151,428.63 = 73,474.09 : x
  2. Step 2: Convert to fraction form
    109,771.10/151,428.63 = 73,474.09/x
  3. Step 3: Cross multiply
    109,771.10x = 151,428.63 × 73,474.09
  4. Step 4: Simplify right side
    109,771.10x = 11,126,080,492.11
  5. Step 5: Solve for x
    x = 11,126,080,492.11/109,771.10
  6. Step 6: Final answer
    x = 101,357.10

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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.