Home / 136,498.21-188,372.99-76,068.34

Finding the Fourth Proportional to 136,498.21, 188,372.99 and 76,068.34

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Solution

The fourth proportional to 136,498.21, 188,372.99 and 76,068.34 is: 104,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,498.21 : 188,372.99 = 76,068.34 : x
  2. Step 2: Convert to fraction form
    136,498.21/188,372.99 = 76,068.34/x
  3. Step 3: Cross multiply
    136,498.21x = 188,372.99 × 76,068.34
  4. Step 4: Simplify right side
    136,498.21x = 14,329,220,369.38
  5. Step 5: Solve for x
    x = 14,329,220,369.38/136,498.21
  6. Step 6: Final answer
    x = 104,977.35

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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.