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Finding the Fourth Proportional to 181,423.80, 250,363.50 and 100,858.68

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Solution

The fourth proportional to 181,423.80, 250,363.50 and 100,858.68 is: 139,184.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,423.80 : 250,363.50 = 100,858.68 : x
  2. Step 2: Convert to fraction form
    181,423.80/250,363.50 = 100,858.68/x
  3. Step 3: Cross multiply
    181,423.80x = 250,363.50 × 100,858.68
  4. Step 4: Simplify right side
    181,423.80x = 25,251,332,130.18
  5. Step 5: Solve for x
    x = 25,251,332,130.18/181,423.80
  6. Step 6: Final answer
    x = 139,184.23

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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.