Home / 157,140.77-216,850.09-85,519.25

Finding the Fourth Proportional to 157,140.77, 216,850.09 and 85,519.25

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Solution

The fourth proportional to 157,140.77, 216,850.09 and 85,519.25 is: 118,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,140.77 : 216,850.09 = 85,519.25 : x
  2. Step 2: Convert to fraction form
    157,140.77/216,850.09 = 85,519.25/x
  3. Step 3: Cross multiply
    157,140.77x = 216,850.09 × 85,519.25
  4. Step 4: Simplify right side
    157,140.77x = 18,544,857,059.23
  5. Step 5: Solve for x
    x = 18,544,857,059.23/157,140.77
  6. Step 6: Final answer
    x = 118,014.29

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1.5x scale

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.