Home / 185,739.48-256,321.53-100,856.57

Finding the Fourth Proportional to 185,739.48, 256,321.53 and 100,856.57

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Solution

The fourth proportional to 185,739.48, 256,321.53 and 100,856.57 is: 139,182.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,739.48 : 256,321.53 = 100,856.57 : x
  2. Step 2: Convert to fraction form
    185,739.48/256,321.53 = 100,856.57/x
  3. Step 3: Cross multiply
    185,739.48x = 256,321.53 × 100,856.57
  4. Step 4: Simplify right side
    185,739.48x = 25,851,710,332.95
  5. Step 5: Solve for x
    x = 25,851,710,332.95/185,739.48
  6. Step 6: Final answer
    x = 139,182.64

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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.