Home / 219,336.12-302,688.90-123,843.60

Finding the Fourth Proportional to 219,336.12, 302,688.90 and 123,843.60

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Solution

The fourth proportional to 219,336.12, 302,688.90 and 123,843.60 is: 170,907.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,336.12 : 302,688.90 = 123,843.60 : x
  2. Step 2: Convert to fraction form
    219,336.12/302,688.90 = 123,843.60/x
  3. Step 3: Cross multiply
    219,336.12x = 302,688.90 × 123,843.60
  4. Step 4: Simplify right side
    219,336.12x = 37,486,083,056.04
  5. Step 5: Solve for x
    x = 37,486,083,056.04/219,336.12
  6. Step 6: Final answer
    x = 170,907.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.