Home / 99,372.22-137,138.46-56,930.85

Finding the Fourth Proportional to 99,372.22, 137,138.46 and 56,930.85

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Solution

The fourth proportional to 99,372.22, 137,138.46 and 56,930.85 is: 78,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,372.22 : 137,138.46 = 56,930.85 : x
  2. Step 2: Convert to fraction form
    99,372.22/137,138.46 = 56,930.85/x
  3. Step 3: Cross multiply
    99,372.22x = 137,138.46 × 56,930.85
  4. Step 4: Simplify right side
    99,372.22x = 7,807,409,095.49
  5. Step 5: Solve for x
    x = 7,807,409,095.49/99,372.22
  6. Step 6: Final answer
    x = 78,567.32

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1.5x scale

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.