Home / 136,138.02-187,877.52-75,709.86

Finding the Fourth Proportional to 136,138.02, 187,877.52 and 75,709.86

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Solution

The fourth proportional to 136,138.02, 187,877.52 and 75,709.86 is: 104,483.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,138.02 : 187,877.52 = 75,709.86 : x
  2. Step 2: Convert to fraction form
    136,138.02/187,877.52 = 75,709.86/x
  3. Step 3: Cross multiply
    136,138.02x = 187,877.52 × 75,709.86
  4. Step 4: Simplify right side
    136,138.02x = 14,224,180,736.35
  5. Step 5: Solve for x
    x = 14,224,180,736.35/136,138.02
  6. Step 6: Final answer
    x = 104,483.53

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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.