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Finding the Fourth Proportional to 133,341.69, 200,012.73 and 54,455.91

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Solution

The fourth proportional to 133,341.69, 200,012.73 and 54,455.91 is: 81,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,341.69 : 200,012.73 = 54,455.91 : x
  2. Step 2: Convert to fraction form
    133,341.69/200,012.73 = 54,455.91/x
  3. Step 3: Cross multiply
    133,341.69x = 200,012.73 × 54,455.91
  4. Step 4: Simplify right side
    133,341.69x = 10,891,875,223.73
  5. Step 5: Solve for x
    x = 10,891,875,223.73/133,341.69
  6. Step 6: Final answer
    x = 81,683.94

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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.