Home / 172,220.10-257,869.35-109,551.30

Finding the Fourth Proportional to 172,220.10, 257,869.35 and 109,551.30

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Solution

The fourth proportional to 172,220.10, 257,869.35 and 109,551.30 is: 164,033.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,220.10 : 257,869.35 = 109,551.30 : x
  2. Step 2: Convert to fraction form
    172,220.10/257,869.35 = 109,551.30/x
  3. Step 3: Cross multiply
    172,220.10x = 257,869.35 × 109,551.30
  4. Step 4: Simplify right side
    172,220.10x = 28,249,922,522.66
  5. Step 5: Solve for x
    x = 28,249,922,522.66/172,220.10
  6. Step 6: Final answer
    x = 164,033.83

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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.