Home / 102,612.78-141,566.67-62,311.32

Finding the Fourth Proportional to 102,612.78, 141,566.67 and 62,311.32

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Solution

The fourth proportional to 102,612.78, 141,566.67 and 62,311.32 is: 85,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,612.78 : 141,566.67 = 62,311.32 : x
  2. Step 2: Convert to fraction form
    102,612.78/141,566.67 = 62,311.32/x
  3. Step 3: Cross multiply
    102,612.78x = 141,566.67 × 62,311.32
  4. Step 4: Simplify right side
    102,612.78x = 8,821,206,075.70
  5. Step 5: Solve for x
    x = 8,821,206,075.70/102,612.78
  6. Step 6: Final answer
    x = 85,965.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.