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Finding the Fourth Proportional to 133,187.36, 183,795.48 and 72,758.25

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Solution

The fourth proportional to 133,187.36, 183,795.48 and 72,758.25 is: 100,404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,187.36 : 183,795.48 = 72,758.25 : x
  2. Step 2: Convert to fraction form
    133,187.36/183,795.48 = 72,758.25/x
  3. Step 3: Cross multiply
    133,187.36x = 183,795.48 × 72,758.25
  4. Step 4: Simplify right side
    133,187.36x = 13,372,637,482.71
  5. Step 5: Solve for x
    x = 13,372,637,482.71/133,187.36
  6. Step 6: Final answer
    x = 100,404.71

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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.