Home / 103,540.65-155,256.30-44,309.40

Finding the Fourth Proportional to 103,540.65, 155,256.30 and 44,309.40

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Solution

The fourth proportional to 103,540.65, 155,256.30 and 44,309.40 is: 66,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,540.65 : 155,256.30 = 44,309.40 : x
  2. Step 2: Convert to fraction form
    103,540.65/155,256.30 = 44,309.40/x
  3. Step 3: Cross multiply
    103,540.65x = 155,256.30 × 44,309.40
  4. Step 4: Simplify right side
    103,540.65x = 6,879,313,499.22
  5. Step 5: Solve for x
    x = 6,879,313,499.22/103,540.65
  6. Step 6: Final answer
    x = 66,440.70

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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.