Home / 163,531.20-225,667.14-91,915.14

Finding the Fourth Proportional to 163,531.20, 225,667.14 and 91,915.14

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Solution

The fourth proportional to 163,531.20, 225,667.14 and 91,915.14 is: 126,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,531.20 : 225,667.14 = 91,915.14 : x
  2. Step 2: Convert to fraction form
    163,531.20/225,667.14 = 91,915.14/x
  3. Step 3: Cross multiply
    163,531.20x = 225,667.14 × 91,915.14
  4. Step 4: Simplify right side
    163,531.20x = 20,742,226,766.50
  5. Step 5: Solve for x
    x = 20,742,226,766.50/163,531.20
  6. Step 6: Final answer
    x = 126,839.57

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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.