Home / 121,824.94-168,109.87-70,834.05

Finding the Fourth Proportional to 121,824.94, 168,109.87 and 70,834.05

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Solution

The fourth proportional to 121,824.94, 168,109.87 and 70,834.05 is: 97,746.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,824.94 : 168,109.87 = 70,834.05 : x
  2. Step 2: Convert to fraction form
    121,824.94/168,109.87 = 70,834.05/x
  3. Step 3: Cross multiply
    121,824.94x = 168,109.87 × 70,834.05
  4. Step 4: Simplify right side
    121,824.94x = 11,907,902,937.07
  5. Step 5: Solve for x
    x = 11,907,902,937.07/121,824.94
  6. Step 6: Final answer
    x = 97,746.02

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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.