Home / 215,918.01-297,870.53-125,221.41

Finding the Fourth Proportional to 215,918.01, 297,870.53 and 125,221.41

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Solution

The fourth proportional to 215,918.01, 297,870.53 and 125,221.41 is: 172,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,918.01 : 297,870.53 = 125,221.41 : x
  2. Step 2: Convert to fraction form
    215,918.01/297,870.53 = 125,221.41/x
  3. Step 3: Cross multiply
    215,918.01x = 297,870.53 × 125,221.41
  4. Step 4: Simplify right side
    215,918.01x = 37,299,767,137.94
  5. Step 5: Solve for x
    x = 37,299,767,137.94/215,918.01
  6. Step 6: Final answer
    x = 172,749.68

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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.