Home / 284,108-426,162.81-73,747.76

Finding the Fourth Proportional to 284,108, 426,162.81 and 73,747.76

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Solution

The fourth proportional to 284,108, 426,162.81 and 73,747.76 is: 110,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,108 : 426,162.81 = 73,747.76 : x
  2. Step 2: Convert to fraction form
    284,108/426,162.81 = 73,747.76/x
  3. Step 3: Cross multiply
    284,108x = 426,162.81 × 73,747.76
  4. Step 4: Simplify right side
    284,108x = 31,428,552,632.81
  5. Step 5: Solve for x
    x = 31,428,552,632.81/284,108
  6. Step 6: Final answer
    x = 110,621.85

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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.