Home / 170,296.63-255,444.78-80,318.35

Finding the Fourth Proportional to 170,296.63, 255,444.78 and 80,318.35

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Solution

The fourth proportional to 170,296.63, 255,444.78 and 80,318.35 is: 120,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,296.63 : 255,444.78 = 80,318.35 : x
  2. Step 2: Convert to fraction form
    170,296.63/255,444.78 = 80,318.35/x
  3. Step 3: Cross multiply
    170,296.63x = 255,444.78 × 80,318.35
  4. Step 4: Simplify right side
    170,296.63x = 20,516,903,245.71
  5. Step 5: Solve for x
    x = 20,516,903,245.71/170,296.63
  6. Step 6: Final answer
    x = 120,477.45

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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.