Home / 136,137.76-204,029.16-69,521.74

Finding the Fourth Proportional to 136,137.76, 204,029.16 and 69,521.74

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Solution

The fourth proportional to 136,137.76, 204,029.16 and 69,521.74 is: 104,191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,137.76 : 204,029.16 = 69,521.74 : x
  2. Step 2: Convert to fraction form
    136,137.76/204,029.16 = 69,521.74/x
  3. Step 3: Cross multiply
    136,137.76x = 204,029.16 × 69,521.74
  4. Step 4: Simplify right side
    136,137.76x = 14,184,462,213.94
  5. Step 5: Solve for x
    x = 14,184,462,213.94/136,137.76
  6. Step 6: Final answer
    x = 104,191.98

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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.