Home / 171,971.28-257,803.02-66,765.24

Finding the Fourth Proportional to 171,971.28, 257,803.02 and 66,765.24

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Solution

The fourth proportional to 171,971.28, 257,803.02 and 66,765.24 is: 100,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,971.28 : 257,803.02 = 66,765.24 : x
  2. Step 2: Convert to fraction form
    171,971.28/257,803.02 = 66,765.24/x
  3. Step 3: Cross multiply
    171,971.28x = 257,803.02 × 66,765.24
  4. Step 4: Simplify right side
    171,971.28x = 17,212,280,503.02
  5. Step 5: Solve for x
    x = 17,212,280,503.02/171,971.28
  6. Step 6: Final answer
    x = 100,088.11

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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.