Home / 121,829.10-182,300.78-100,571.46

Finding the Fourth Proportional to 121,829.10, 182,300.78 and 100,571.46

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Solution

The fourth proportional to 121,829.10, 182,300.78 and 100,571.46 is: 150,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,829.10 : 182,300.78 = 100,571.46 : x
  2. Step 2: Convert to fraction form
    121,829.10/182,300.78 = 100,571.46/x
  3. Step 3: Cross multiply
    121,829.10x = 182,300.78 × 100,571.46
  4. Step 4: Simplify right side
    121,829.10x = 18,334,255,603.74
  5. Step 5: Solve for x
    x = 18,334,255,603.74/121,829.10
  6. Step 6: Final answer
    x = 150,491.60

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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.