Home / 109,939.15-164,915.56-39,819.07

Finding the Fourth Proportional to 109,939.15, 164,915.56 and 39,819.07

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Solution

The fourth proportional to 109,939.15, 164,915.56 and 39,819.07 is: 59,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,939.15 : 164,915.56 = 39,819.07 : x
  2. Step 2: Convert to fraction form
    109,939.15/164,915.56 = 39,819.07/x
  3. Step 3: Cross multiply
    109,939.15x = 164,915.56 × 39,819.07
  4. Step 4: Simplify right side
    109,939.15x = 6,566,783,865.21
  5. Step 5: Solve for x
    x = 6,566,783,865.21/109,939.15
  6. Step 6: Final answer
    x = 59,731.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.