Home / 219,907.20-303,451.52-124,421.12

Finding the Fourth Proportional to 219,907.20, 303,451.52 and 124,421.12

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Solution

The fourth proportional to 219,907.20, 303,451.52 and 124,421.12 is: 171,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,907.20 : 303,451.52 = 124,421.12 : x
  2. Step 2: Convert to fraction form
    219,907.20/303,451.52 = 124,421.12/x
  3. Step 3: Cross multiply
    219,907.20x = 303,451.52 × 124,421.12
  4. Step 4: Simplify right side
    219,907.20x = 37,755,777,984.10
  5. Step 5: Solve for x
    x = 37,755,777,984.10/219,907.20
  6. Step 6: Final answer
    x = 171,689.59

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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.