Home / 205,118.84-307,680.69-72,002.90

Finding the Fourth Proportional to 205,118.84, 307,680.69 and 72,002.90

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Solution

The fourth proportional to 205,118.84, 307,680.69 and 72,002.90 is: 108,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,118.84 : 307,680.69 = 72,002.90 : x
  2. Step 2: Convert to fraction form
    205,118.84/307,680.69 = 72,002.90/x
  3. Step 3: Cross multiply
    205,118.84x = 307,680.69 × 72,002.90
  4. Step 4: Simplify right side
    205,118.84x = 22,153,901,954.00
  5. Step 5: Solve for x
    x = 22,153,901,954.00/205,118.84
  6. Step 6: Final answer
    x = 108,005.20

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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.