Home / 124,119,730.85-171,285,220.43-71,939,033.75

Finding the Fourth Proportional to 124,119,730.85, 171,285,220.43 and 71,939,033.75

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Solution

The fourth proportional to 124,119,730.85, 171,285,220.43 and 71,939,033.75 is: 99,275,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,119,730.85 : 171,285,220.43 = 71,939,033.75 : x
  2. Step 2: Convert to fraction form
    124,119,730.85/171,285,220.43 = 71,939,033.75/x
  3. Step 3: Cross multiply
    124,119,730.85x = 171,285,220.43 × 71,939,033.75
  4. Step 4: Simplify right side
    124,119,730.85x = 12,322,093,252,173,840
  5. Step 5: Solve for x
    x = 12,322,093,252,173,840/124,119,730.85
  6. Step 6: Final answer
    x = 99,275,861.85

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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.