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Finding the Fourth Proportional to 133,305.60, 183,980.52 and 81,653.52

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Solution

The fourth proportional to 133,305.60, 183,980.52 and 81,653.52 is: 112,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,305.60 : 183,980.52 = 81,653.52 : x
  2. Step 2: Convert to fraction form
    133,305.60/183,980.52 = 81,653.52/x
  3. Step 3: Cross multiply
    133,305.60x = 183,980.52 × 81,653.52
  4. Step 4: Simplify right side
    133,305.60x = 15,022,657,069.43
  5. Step 5: Solve for x
    x = 15,022,657,069.43/133,305.60
  6. Step 6: Final answer
    x = 112,693.37

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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.