Home / 171,682.16-257,416.63-71,719.86

Finding the Fourth Proportional to 171,682.16, 257,416.63 and 71,719.86

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Solution

The fourth proportional to 171,682.16, 257,416.63 and 71,719.86 is: 107,535.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,682.16 : 257,416.63 = 71,719.86 : x
  2. Step 2: Convert to fraction form
    171,682.16/257,416.63 = 71,719.86/x
  3. Step 3: Cross multiply
    171,682.16x = 257,416.63 × 71,719.86
  4. Step 4: Simplify right side
    171,682.16x = 18,461,884,306.67
  5. Step 5: Solve for x
    x = 18,461,884,306.67/171,682.16
  6. Step 6: Final answer
    x = 107,535.25

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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.