Home / 171,687.20-257,312.10-124,885.40

Finding the Fourth Proportional to 171,687.20, 257,312.10 and 124,885.40

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Solution

The fourth proportional to 171,687.20, 257,312.10 and 124,885.40 is: 187,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,687.20 : 257,312.10 = 124,885.40 : x
  2. Step 2: Convert to fraction form
    171,687.20/257,312.10 = 124,885.40/x
  3. Step 3: Cross multiply
    171,687.20x = 257,312.10 × 124,885.40
  4. Step 4: Simplify right side
    171,687.20x = 32,134,524,533.34
  5. Step 5: Solve for x
    x = 32,134,524,533.34/171,687.20
  6. Step 6: Final answer
    x = 187,169.02

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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.