Home / 96,004.20-144,006.30-90,172.20

Finding the Fourth Proportional to 96,004.20, 144,006.30 and 90,172.20

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Solution

The fourth proportional to 96,004.20, 144,006.30 and 90,172.20 is: 135,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,004.20 : 144,006.30 = 90,172.20 : x
  2. Step 2: Convert to fraction form
    96,004.20/144,006.30 = 90,172.20/x
  3. Step 3: Cross multiply
    96,004.20x = 144,006.30 × 90,172.20
  4. Step 4: Simplify right side
    96,004.20x = 12,985,364,884.86
  5. Step 5: Solve for x
    x = 12,985,364,884.86/96,004.20
  6. Step 6: Final answer
    x = 135,258.30

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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.