Home / 185,025.21-255,339.77-112,403.40

Finding the Fourth Proportional to 185,025.21, 255,339.77 and 112,403.40

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Solution

The fourth proportional to 185,025.21, 255,339.77 and 112,403.40 is: 155,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,025.21 : 255,339.77 = 112,403.40 : x
  2. Step 2: Convert to fraction form
    185,025.21/255,339.77 = 112,403.40/x
  3. Step 3: Cross multiply
    185,025.21x = 255,339.77 × 112,403.40
  4. Step 4: Simplify right side
    185,025.21x = 28,701,057,099.81
  5. Step 5: Solve for x
    x = 28,701,057,099.81/185,025.21
  6. Step 6: Final answer
    x = 155,119.71

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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.