Home / 139,112.26-208,598.22-99,108.40

Finding the Fourth Proportional to 139,112.26, 208,598.22 and 99,108.40

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Solution

The fourth proportional to 139,112.26, 208,598.22 and 99,108.40 is: 148,612.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,112.26 : 208,598.22 = 99,108.40 : x
  2. Step 2: Convert to fraction form
    139,112.26/208,598.22 = 99,108.40/x
  3. Step 3: Cross multiply
    139,112.26x = 208,598.22 × 99,108.40
  4. Step 4: Simplify right side
    139,112.26x = 20,673,835,827.05
  5. Step 5: Solve for x
    x = 20,673,835,827.05/139,112.26
  6. Step 6: Final answer
    x = 148,612.61

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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.