Home / 163,531.28-225,673.80-91,914.32

Finding the Fourth Proportional to 163,531.28, 225,673.80 and 91,914.32

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Solution

The fourth proportional to 163,531.28, 225,673.80 and 91,914.32 is: 126,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,531.28 : 225,673.80 = 91,914.32 : x
  2. Step 2: Convert to fraction form
    163,531.28/225,673.80 = 91,914.32/x
  3. Step 3: Cross multiply
    163,531.28x = 225,673.80 × 91,914.32
  4. Step 4: Simplify right side
    163,531.28x = 20,742,653,868.82
  5. Step 5: Solve for x
    x = 20,742,653,868.82/163,531.28
  6. Step 6: Final answer
    x = 126,842.12

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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.