Home / 215,631.75-297,573.85-118,839.15

Finding the Fourth Proportional to 215,631.75, 297,573.85 and 118,839.15

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Solution

The fourth proportional to 215,631.75, 297,573.85 and 118,839.15 is: 163,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,631.75 : 297,573.85 = 118,839.15 : x
  2. Step 2: Convert to fraction form
    215,631.75/297,573.85 = 118,839.15/x
  3. Step 3: Cross multiply
    215,631.75x = 297,573.85 × 118,839.15
  4. Step 4: Simplify right side
    215,631.75x = 35,363,423,396.23
  5. Step 5: Solve for x
    x = 35,363,423,396.23/215,631.75
  6. Step 6: Final answer
    x = 163,999.15

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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.