Home / 205,015.80-307,523.70-125,873.40

Finding the Fourth Proportional to 205,015.80, 307,523.70 and 125,873.40

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Solution

The fourth proportional to 205,015.80, 307,523.70 and 125,873.40 is: 188,810.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,015.80 : 307,523.70 = 125,873.40 : x
  2. Step 2: Convert to fraction form
    205,015.80/307,523.70 = 125,873.40/x
  3. Step 3: Cross multiply
    205,015.80x = 307,523.70 × 125,873.40
  4. Step 4: Simplify right side
    205,015.80x = 38,709,053,699.58
  5. Step 5: Solve for x
    x = 38,709,053,699.58/205,015.80
  6. Step 6: Final answer
    x = 188,810.10

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1.5x scale

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.