Home / 170,181.40-255,272.10-81,607.90

Finding the Fourth Proportional to 170,181.40, 255,272.10 and 81,607.90

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Solution

The fourth proportional to 170,181.40, 255,272.10 and 81,607.90 is: 122,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,181.40 : 255,272.10 = 81,607.90 : x
  2. Step 2: Convert to fraction form
    170,181.40/255,272.10 = 81,607.90/x
  3. Step 3: Cross multiply
    170,181.40x = 255,272.10 × 81,607.90
  4. Step 4: Simplify right side
    170,181.40x = 20,832,220,009.59
  5. Step 5: Solve for x
    x = 20,832,220,009.59/170,181.40
  6. Step 6: Final answer
    x = 122,411.85

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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.