Home / 205,230.80-307,846.20-126,088.40

Finding the Fourth Proportional to 205,230.80, 307,846.20 and 126,088.40

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Solution

The fourth proportional to 205,230.80, 307,846.20 and 126,088.40 is: 189,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,230.80 : 307,846.20 = 126,088.40 : x
  2. Step 2: Convert to fraction form
    205,230.80/307,846.20 = 126,088.40/x
  3. Step 3: Cross multiply
    205,230.80x = 307,846.20 × 126,088.40
  4. Step 4: Simplify right side
    205,230.80x = 38,815,834,804.08
  5. Step 5: Solve for x
    x = 38,815,834,804.08/205,230.80
  6. Step 6: Final answer
    x = 189,132.60

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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.