Home / 208,764.81-312,905.16-96,208.57

Finding the Fourth Proportional to 208,764.81, 312,905.16 and 96,208.57

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Solution

The fourth proportional to 208,764.81, 312,905.16 and 96,208.57 is: 144,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,764.81 : 312,905.16 = 96,208.57 : x
  2. Step 2: Convert to fraction form
    208,764.81/312,905.16 = 96,208.57/x
  3. Step 3: Cross multiply
    208,764.81x = 312,905.16 × 96,208.57
  4. Step 4: Simplify right side
    208,764.81x = 30,104,157,989.22
  5. Step 5: Solve for x
    x = 30,104,157,989.22/208,764.81
  6. Step 6: Final answer
    x = 144,201.30

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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.