Home / 175,210.10-262,815.15-81,725.30

Finding the Fourth Proportional to 175,210.10, 262,815.15 and 81,725.30

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Solution

The fourth proportional to 175,210.10, 262,815.15 and 81,725.30 is: 122,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,210.10 : 262,815.15 = 81,725.30 : x
  2. Step 2: Convert to fraction form
    175,210.10/262,815.15 = 81,725.30/x
  3. Step 3: Cross multiply
    175,210.10x = 262,815.15 × 81,725.30
  4. Step 4: Simplify right side
    175,210.10x = 21,478,646,978.30
  5. Step 5: Solve for x
    x = 21,478,646,978.30/175,210.10
  6. Step 6: Final answer
    x = 122,587.95

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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.