Home / 136,529.69-204,646.57-69,878.43

Finding the Fourth Proportional to 136,529.69, 204,646.57 and 69,878.43

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Solution

The fourth proportional to 136,529.69, 204,646.57 and 69,878.43 is: 104,741.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,529.69 : 204,646.57 = 69,878.43 : x
  2. Step 2: Convert to fraction form
    136,529.69/204,646.57 = 69,878.43/x
  3. Step 3: Cross multiply
    136,529.69x = 204,646.57 × 69,878.43
  4. Step 4: Simplify right side
    136,529.69x = 14,300,380,841.79
  5. Step 5: Solve for x
    x = 14,300,380,841.79/136,529.69
  6. Step 6: Final answer
    x = 104,741.92

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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.