Home / 219,477.60-302,903.67-123,990.45

Finding the Fourth Proportional to 219,477.60, 302,903.67 and 123,990.45

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Solution

The fourth proportional to 219,477.60, 302,903.67 and 123,990.45 is: 171,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,477.60 : 302,903.67 = 123,990.45 : x
  2. Step 2: Convert to fraction form
    219,477.60/302,903.67 = 123,990.45/x
  3. Step 3: Cross multiply
    219,477.60x = 302,903.67 × 123,990.45
  4. Step 4: Simplify right side
    219,477.60x = 37,557,162,349.95
  5. Step 5: Solve for x
    x = 37,557,162,349.95/219,477.60
  6. Step 6: Final answer
    x = 171,120.71

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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.