Home / 136,656.12-188,586.48-76,230.72

Finding the Fourth Proportional to 136,656.12, 188,586.48 and 76,230.72

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Solution

The fourth proportional to 136,656.12, 188,586.48 and 76,230.72 is: 105,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,656.12 : 188,586.48 = 76,230.72 : x
  2. Step 2: Convert to fraction form
    136,656.12/188,586.48 = 76,230.72/x
  3. Step 3: Cross multiply
    136,656.12x = 188,586.48 × 76,230.72
  4. Step 4: Simplify right side
    136,656.12x = 14,376,083,152.67
  5. Step 5: Solve for x
    x = 14,376,083,152.67/136,656.12
  6. Step 6: Final answer
    x = 105,198.97

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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.