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Finding the Fourth Proportional to 133,336.48, 183,996.80 and 72,895.92

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Solution

The fourth proportional to 133,336.48, 183,996.80 and 72,895.92 is: 100,592.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,336.48 : 183,996.80 = 72,895.92 : x
  2. Step 2: Convert to fraction form
    133,336.48/183,996.80 = 72,895.92/x
  3. Step 3: Cross multiply
    133,336.48x = 183,996.80 × 72,895.92
  4. Step 4: Simplify right side
    133,336.48x = 13,412,616,013.06
  5. Step 5: Solve for x
    x = 13,412,616,013.06/133,336.48
  6. Step 6: Final answer
    x = 100,592.25

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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.