Home / 171,748.10-257,719.59-66,574.34

Finding the Fourth Proportional to 171,748.10, 257,719.59 and 66,574.34

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Solution

The fourth proportional to 171,748.10, 257,719.59 and 66,574.34 is: 99,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,748.10 : 257,719.59 = 66,574.34 : x
  2. Step 2: Convert to fraction form
    171,748.10/257,719.59 = 66,574.34/x
  3. Step 3: Cross multiply
    171,748.10x = 257,719.59 × 66,574.34
  4. Step 4: Simplify right side
    171,748.10x = 17,157,511,609.32
  5. Step 5: Solve for x
    x = 17,157,511,609.32/171,748.10
  6. Step 6: Final answer
    x = 99,899.28

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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.