Home / 215,639.88-297,585.10-118,847.25

Finding the Fourth Proportional to 215,639.88, 297,585.10 and 118,847.25

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Solution

The fourth proportional to 215,639.88, 297,585.10 and 118,847.25 is: 164,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,639.88 : 297,585.10 = 118,847.25 : x
  2. Step 2: Convert to fraction form
    215,639.88/297,585.10 = 118,847.25/x
  3. Step 3: Cross multiply
    215,639.88x = 297,585.10 × 118,847.25
  4. Step 4: Simplify right side
    215,639.88x = 35,367,170,775.98
  5. Step 5: Solve for x
    x = 35,367,170,775.98/215,639.88
  6. Step 6: Final answer
    x = 164,010.34

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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.