Home / 219,145.37-302,403.98-123,660.95

Finding the Fourth Proportional to 219,145.37, 302,403.98 and 123,660.95

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Solution

The fourth proportional to 219,145.37, 302,403.98 and 123,660.95 is: 170,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,145.37 : 302,403.98 = 123,660.95 : x
  2. Step 2: Convert to fraction form
    219,145.37/302,403.98 = 123,660.95/x
  3. Step 3: Cross multiply
    219,145.37x = 302,403.98 × 123,660.95
  4. Step 4: Simplify right side
    219,145.37x = 37,395,562,247.71
  5. Step 5: Solve for x
    x = 37,395,562,247.71/219,145.37
  6. Step 6: Final answer
    x = 170,642.72

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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.