Home / 185,378.52-278,150.86-85,485.17

Finding the Fourth Proportional to 185,378.52, 278,150.86 and 85,485.17

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Solution

The fourth proportional to 185,378.52, 278,150.86 and 85,485.17 is: 128,266.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,378.52 : 278,150.86 = 85,485.17 : x
  2. Step 2: Convert to fraction form
    185,378.52/278,150.86 = 85,485.17/x
  3. Step 3: Cross multiply
    185,378.52x = 278,150.86 × 85,485.17
  4. Step 4: Simplify right side
    185,378.52x = 23,777,774,354.98
  5. Step 5: Solve for x
    x = 23,777,774,354.98/185,378.52
  6. Step 6: Final answer
    x = 128,266.07

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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.