Home / 219,225.35-302,581.53-128,610.42

Finding the Fourth Proportional to 219,225.35, 302,581.53 and 128,610.42

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Solution

The fourth proportional to 219,225.35, 302,581.53 and 128,610.42 is: 177,512.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,225.35 : 302,581.53 = 128,610.42 : x
  2. Step 2: Convert to fraction form
    219,225.35/302,581.53 = 128,610.42/x
  3. Step 3: Cross multiply
    219,225.35x = 302,581.53 × 128,610.42
  4. Step 4: Simplify right side
    219,225.35x = 38,915,137,014.49
  5. Step 5: Solve for x
    x = 38,915,137,014.49/219,225.35
  6. Step 6: Final answer
    x = 177,512.03

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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.