Home / 185,505.48-278,255.52-128,526.84

Finding the Fourth Proportional to 185,505.48, 278,255.52 and 128,526.84

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Solution

The fourth proportional to 185,505.48, 278,255.52 and 128,526.84 is: 192,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,505.48 : 278,255.52 = 128,526.84 : x
  2. Step 2: Convert to fraction form
    185,505.48/278,255.52 = 128,526.84/x
  3. Step 3: Cross multiply
    185,505.48x = 278,255.52 × 128,526.84
  4. Step 4: Simplify right side
    185,505.48x = 35,763,302,698.16
  5. Step 5: Solve for x
    x = 35,763,302,698.16/185,505.48
  6. Step 6: Final answer
    x = 192,788.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.