Home / 136,330.90-204,538.03-69,818.09

Finding the Fourth Proportional to 136,330.90, 204,538.03 and 69,818.09

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Solution

The fourth proportional to 136,330.90, 204,538.03 and 69,818.09 is: 104,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,330.90 : 204,538.03 = 69,818.09 : x
  2. Step 2: Convert to fraction form
    136,330.90/204,538.03 = 69,818.09/x
  3. Step 3: Cross multiply
    136,330.90x = 204,538.03 × 69,818.09
  4. Step 4: Simplify right side
    136,330.90x = 14,280,453,389.73
  5. Step 5: Solve for x
    x = 14,280,453,389.73/136,330.90
  6. Step 6: Final answer
    x = 104,748.47

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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.