Home / 136,056.78-187,756.47-75,627.54

Finding the Fourth Proportional to 136,056.78, 187,756.47 and 75,627.54

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Solution

The fourth proportional to 136,056.78, 187,756.47 and 75,627.54 is: 104,364.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,056.78 : 187,756.47 = 75,627.54 : x
  2. Step 2: Convert to fraction form
    136,056.78/187,756.47 = 75,627.54/x
  3. Step 3: Cross multiply
    136,056.78x = 187,756.47 × 75,627.54
  4. Step 4: Simplify right side
    136,056.78x = 14,199,559,945.18
  5. Step 5: Solve for x
    x = 14,199,559,945.18/136,056.78
  6. Step 6: Final answer
    x = 104,364.96

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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.