Home / 163,231.40-225,281.32-91,615.34

Finding the Fourth Proportional to 163,231.40, 225,281.32 and 91,615.34

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Solution

The fourth proportional to 163,231.40, 225,281.32 and 91,615.34 is: 126,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,231.40 : 225,281.32 = 91,615.34 : x
  2. Step 2: Convert to fraction form
    163,231.40/225,281.32 = 91,615.34/x
  3. Step 3: Cross multiply
    163,231.40x = 225,281.32 × 91,615.34
  4. Step 4: Simplify right side
    163,231.40x = 20,639,225,061.61
  5. Step 5: Solve for x
    x = 20,639,225,061.61/163,231.40
  6. Step 6: Final answer
    x = 126,441.51

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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.