Home / 215,555.58-297,474.12-124,911.72

Finding the Fourth Proportional to 215,555.58, 297,474.12 and 124,911.72

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Solution

The fourth proportional to 215,555.58, 297,474.12 and 124,911.72 is: 172,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,555.58 : 297,474.12 = 124,911.72 : x
  2. Step 2: Convert to fraction form
    215,555.58/297,474.12 = 124,911.72/x
  3. Step 3: Cross multiply
    215,555.58x = 297,474.12 × 124,911.72
  4. Step 4: Simplify right side
    215,555.58x = 37,158,003,984.69
  5. Step 5: Solve for x
    x = 37,158,003,984.69/215,555.58
  6. Step 6: Final answer
    x = 172,382.47

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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.