Home / 112,650.51-155,457.85-70,209.04

Finding the Fourth Proportional to 112,650.51, 155,457.85 and 70,209.04

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Solution

The fourth proportional to 112,650.51, 155,457.85 and 70,209.04 is: 96,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,650.51 : 155,457.85 = 70,209.04 : x
  2. Step 2: Convert to fraction form
    112,650.51/155,457.85 = 70,209.04/x
  3. Step 3: Cross multiply
    112,650.51x = 155,457.85 × 70,209.04
  4. Step 4: Simplify right side
    112,650.51x = 10,914,546,584.49
  5. Step 5: Solve for x
    x = 10,914,546,584.49/112,650.51
  6. Step 6: Final answer
    x = 96,888.57

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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.