Home / 133,180-183,788.40-76,590.16

Finding the Fourth Proportional to 133,180, 183,788.40 and 76,590.16

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Solution

The fourth proportional to 133,180, 183,788.40 and 76,590.16 is: 105,694.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,180 : 183,788.40 = 76,590.16 : x
  2. Step 2: Convert to fraction form
    133,180/183,788.40 = 76,590.16/x
  3. Step 3: Cross multiply
    133,180x = 183,788.40 × 76,590.16
  4. Step 4: Simplify right side
    133,180x = 14,076,382,962.14
  5. Step 5: Solve for x
    x = 14,076,382,962.14/133,180
  6. Step 6: Final answer
    x = 105,694.42

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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.