Home / 103,623.24-155,259.90-82,803

Finding the Fourth Proportional to 103,623.24, 155,259.90 and 82,803

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Solution

The fourth proportional to 103,623.24, 155,259.90 and 82,803 is: 124,064.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.24 : 155,259.90 = 82,803 : x
  2. Step 2: Convert to fraction form
    103,623.24/155,259.90 = 82,803/x
  3. Step 3: Cross multiply
    103,623.24x = 155,259.90 × 82,803
  4. Step 4: Simplify right side
    103,623.24x = 12,855,985,499.70
  5. Step 5: Solve for x
    x = 12,855,985,499.70/103,623.24
  6. Step 6: Final answer
    x = 124,064.69

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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.