Home / 121,823.94-168,108.50-70,833.05

Finding the Fourth Proportional to 121,823.94, 168,108.50 and 70,833.05

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Solution

The fourth proportional to 121,823.94, 168,108.50 and 70,833.05 is: 97,744.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,823.94 : 168,108.50 = 70,833.05 : x
  2. Step 2: Convert to fraction form
    121,823.94/168,108.50 = 70,833.05/x
  3. Step 3: Cross multiply
    121,823.94x = 168,108.50 × 70,833.05
  4. Step 4: Simplify right side
    121,823.94x = 11,907,636,591.22
  5. Step 5: Solve for x
    x = 11,907,636,591.22/121,823.94
  6. Step 6: Final answer
    x = 97,744.64

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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.