Home / 141,941.46-212,994.81-78,814.38

Finding the Fourth Proportional to 141,941.46, 212,994.81 and 78,814.38

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Solution

The fourth proportional to 141,941.46, 212,994.81 and 78,814.38 is: 118,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,941.46 : 212,994.81 = 78,814.38 : x
  2. Step 2: Convert to fraction form
    141,941.46/212,994.81 = 78,814.38/x
  3. Step 3: Cross multiply
    141,941.46x = 212,994.81 × 78,814.38
  4. Step 4: Simplify right side
    141,941.46x = 16,787,053,893.37
  5. Step 5: Solve for x
    x = 16,787,053,893.37/141,941.46
  6. Step 6: Final answer
    x = 118,267.45

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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.