Home / 109,091.20-163,636.80-56,516.80

Finding the Fourth Proportional to 109,091.20, 163,636.80 and 56,516.80

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Solution

The fourth proportional to 109,091.20, 163,636.80 and 56,516.80 is: 84,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,091.20 : 163,636.80 = 56,516.80 : x
  2. Step 2: Convert to fraction form
    109,091.20/163,636.80 = 56,516.80/x
  3. Step 3: Cross multiply
    109,091.20x = 163,636.80 × 56,516.80
  4. Step 4: Simplify right side
    109,091.20x = 9,248,228,298.24
  5. Step 5: Solve for x
    x = 9,248,228,298.24/109,091.20
  6. Step 6: Final answer
    x = 84,775.20

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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.