Home / 170,851.10-256,276.65-123,611.90

Finding the Fourth Proportional to 170,851.10, 256,276.65 and 123,611.90

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Solution

The fourth proportional to 170,851.10, 256,276.65 and 123,611.90 is: 185,417.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,851.10 : 256,276.65 = 123,611.90 : x
  2. Step 2: Convert to fraction form
    170,851.10/256,276.65 = 123,611.90/x
  3. Step 3: Cross multiply
    170,851.10x = 256,276.65 × 123,611.90
  4. Step 4: Simplify right side
    170,851.10x = 31,678,843,632.14
  5. Step 5: Solve for x
    x = 31,678,843,632.14/170,851.10
  6. Step 6: Final answer
    x = 185,417.85

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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.