Home / 136,890.34-204,905.33-87,026.74

Finding the Fourth Proportional to 136,890.34, 204,905.33 and 87,026.74

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Solution

The fourth proportional to 136,890.34, 204,905.33 and 87,026.74 is: 130,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,890.34 : 204,905.33 = 87,026.74 : x
  2. Step 2: Convert to fraction form
    136,890.34/204,905.33 = 87,026.74/x
  3. Step 3: Cross multiply
    136,890.34x = 204,905.33 × 87,026.74
  4. Step 4: Simplify right side
    136,890.34x = 17,832,241,418.86
  5. Step 5: Solve for x
    x = 17,832,241,418.86/136,890.34
  6. Step 6: Final answer
    x = 130,266.62

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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.