Home / 105,241.78-157,610.49-76,702.24

Finding the Fourth Proportional to 105,241.78, 157,610.49 and 76,702.24

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Solution

The fourth proportional to 105,241.78, 157,610.49 and 76,702.24 is: 114,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,241.78 : 157,610.49 = 76,702.24 : x
  2. Step 2: Convert to fraction form
    105,241.78/157,610.49 = 76,702.24/x
  3. Step 3: Cross multiply
    105,241.78x = 157,610.49 × 76,702.24
  4. Step 4: Simplify right side
    105,241.78x = 12,089,077,630.50
  5. Step 5: Solve for x
    x = 12,089,077,630.50/105,241.78
  6. Step 6: Final answer
    x = 114,869.57

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1.5x scale

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.