Home / 208,186.45-312,088.32-75,034.12

Finding the Fourth Proportional to 208,186.45, 312,088.32 and 75,034.12

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Solution

The fourth proportional to 208,186.45, 312,088.32 and 75,034.12 is: 112,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,186.45 : 312,088.32 = 75,034.12 : x
  2. Step 2: Convert to fraction form
    208,186.45/312,088.32 = 75,034.12/x
  3. Step 3: Cross multiply
    208,186.45x = 312,088.32 × 75,034.12
  4. Step 4: Simplify right side
    208,186.45x = 23,417,272,453.48
  5. Step 5: Solve for x
    x = 23,417,272,453.48/208,186.45
  6. Step 6: Final answer
    x = 112,482.21

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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.