Home / 215,916.85-297,868.89-125,220.25

Finding the Fourth Proportional to 215,916.85, 297,868.89 and 125,220.25

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Solution

The fourth proportional to 215,916.85, 297,868.89 and 125,220.25 is: 172,748.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,916.85 : 297,868.89 = 125,220.25 : x
  2. Step 2: Convert to fraction form
    215,916.85/297,868.89 = 125,220.25/x
  3. Step 3: Cross multiply
    215,916.85x = 297,868.89 × 125,220.25
  4. Step 4: Simplify right side
    215,916.85x = 37,299,216,873.02
  5. Step 5: Solve for x
    x = 37,299,216,873.02/215,916.85
  6. Step 6: Final answer
    x = 172,748.06

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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.