Home / 163,828.20-245,742.30-85,096.20

Finding the Fourth Proportional to 163,828.20, 245,742.30 and 85,096.20

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Solution

The fourth proportional to 163,828.20, 245,742.30 and 85,096.20 is: 127,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,828.20 : 245,742.30 = 85,096.20 : x
  2. Step 2: Convert to fraction form
    163,828.20/245,742.30 = 85,096.20/x
  3. Step 3: Cross multiply
    163,828.20x = 245,742.30 × 85,096.20
  4. Step 4: Simplify right side
    163,828.20x = 20,911,735,909.26
  5. Step 5: Solve for x
    x = 20,911,735,909.26/163,828.20
  6. Step 6: Final answer
    x = 127,644.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.