Home / 109,341.20-164,076.60-72,008.30

Finding the Fourth Proportional to 109,341.20, 164,076.60 and 72,008.30

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Solution

The fourth proportional to 109,341.20, 164,076.60 and 72,008.30 is: 108,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,341.20 : 164,076.60 = 72,008.30 : x
  2. Step 2: Convert to fraction form
    109,341.20/164,076.60 = 72,008.30/x
  3. Step 3: Cross multiply
    109,341.20x = 164,076.60 × 72,008.30
  4. Step 4: Simplify right side
    109,341.20x = 11,814,877,035.78
  5. Step 5: Solve for x
    x = 11,814,877,035.78/109,341.20
  6. Step 6: Final answer
    x = 108,055.13

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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.