Home / 156,986.45-235,479.68-83,258.45

Finding the Fourth Proportional to 156,986.45, 235,479.68 and 83,258.45

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Solution

The fourth proportional to 156,986.45, 235,479.68 and 83,258.45 is: 124,887.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,986.45 : 235,479.68 = 83,258.45 : x
  2. Step 2: Convert to fraction form
    156,986.45/235,479.68 = 83,258.45/x
  3. Step 3: Cross multiply
    156,986.45x = 235,479.68 × 83,258.45
  4. Step 4: Simplify right side
    156,986.45x = 19,605,673,163.30
  5. Step 5: Solve for x
    x = 19,605,673,163.30/156,986.45
  6. Step 6: Final answer
    x = 124,887.68

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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.