Home / 135,246.96-186,632.64-81,549.36

Finding the Fourth Proportional to 135,246.96, 186,632.64 and 81,549.36

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Solution

The fourth proportional to 135,246.96, 186,632.64 and 81,549.36 is: 112,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,246.96 : 186,632.64 = 81,549.36 : x
  2. Step 2: Convert to fraction form
    135,246.96/186,632.64 = 81,549.36/x
  3. Step 3: Cross multiply
    135,246.96x = 186,632.64 × 81,549.36
  4. Step 4: Simplify right side
    135,246.96x = 15,219,772,347.11
  5. Step 5: Solve for x
    x = 15,219,772,347.11/135,246.96
  6. Step 6: Final answer
    x = 112,533.19

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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.