Home / 109,114.40-163,477.20-67,512.80

Finding the Fourth Proportional to 109,114.40, 163,477.20 and 67,512.80

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Solution

The fourth proportional to 109,114.40, 163,477.20 and 67,512.80 is: 101,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,114.40 : 163,477.20 = 67,512.80 : x
  2. Step 2: Convert to fraction form
    109,114.40/163,477.20 = 67,512.80/x
  3. Step 3: Cross multiply
    109,114.40x = 163,477.20 × 67,512.80
  4. Step 4: Simplify right side
    109,114.40x = 11,036,803,508.16
  5. Step 5: Solve for x
    x = 11,036,803,508.16/109,114.40
  6. Step 6: Final answer
    x = 101,148.92

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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.