Home / 163,421.85-225,497.59-91,788.15

Finding the Fourth Proportional to 163,421.85, 225,497.59 and 91,788.15

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Solution

The fourth proportional to 163,421.85, 225,497.59 and 91,788.15 is: 126,653.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,421.85 : 225,497.59 = 91,788.15 : x
  2. Step 2: Convert to fraction form
    163,421.85/225,497.59 = 91,788.15/x
  3. Step 3: Cross multiply
    163,421.85x = 225,497.59 × 91,788.15
  4. Step 4: Simplify right side
    163,421.85x = 20,698,006,615.56
  5. Step 5: Solve for x
    x = 20,698,006,615.56/163,421.85
  6. Step 6: Final answer
    x = 126,653.85

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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.