Home / 136,656.90-188,586.78-76,225.98

Finding the Fourth Proportional to 136,656.90, 188,586.78 and 76,225.98

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Solution

The fourth proportional to 136,656.90, 188,586.78 and 76,225.98 is: 105,192.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,656.90 : 188,586.78 = 76,225.98 : x
  2. Step 2: Convert to fraction form
    136,656.90/188,586.78 = 76,225.98/x
  3. Step 3: Cross multiply
    136,656.90x = 188,586.78 × 76,225.98
  4. Step 4: Simplify right side
    136,656.90x = 14,375,212,120.54
  5. Step 5: Solve for x
    x = 14,375,212,120.54/136,656.90
  6. Step 6: Final answer
    x = 105,192.00

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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.