Home / 135,518.52-187,022.58-81,802.84

Finding the Fourth Proportional to 135,518.52, 187,022.58 and 81,802.84

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Solution

The fourth proportional to 135,518.52, 187,022.58 and 81,802.84 is: 112,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,518.52 : 187,022.58 = 81,802.84 : x
  2. Step 2: Convert to fraction form
    135,518.52/187,022.58 = 81,802.84/x
  3. Step 3: Cross multiply
    135,518.52x = 187,022.58 × 81,802.84
  4. Step 4: Simplify right side
    135,518.52x = 15,298,978,188.13
  5. Step 5: Solve for x
    x = 15,298,978,188.13/135,518.52
  6. Step 6: Final answer
    x = 112,892.16

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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.