Home / 208,190.45-312,094.32-75,038.12

Finding the Fourth Proportional to 208,190.45, 312,094.32 and 75,038.12

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Solution

The fourth proportional to 208,190.45, 312,094.32 and 75,038.12 is: 112,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,190.45 : 312,094.32 = 75,038.12 : x
  2. Step 2: Convert to fraction form
    208,190.45/312,094.32 = 75,038.12/x
  3. Step 3: Cross multiply
    208,190.45x = 312,094.32 × 75,038.12
  4. Step 4: Simplify right side
    208,190.45x = 23,418,971,035.48
  5. Step 5: Solve for x
    x = 23,418,971,035.48/208,190.45
  6. Step 6: Final answer
    x = 112,488.21

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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.