Home / 99,139.20-148,881.60-96,028.80

Finding the Fourth Proportional to 99,139.20, 148,881.60 and 96,028.80

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Solution

The fourth proportional to 99,139.20, 148,881.60 and 96,028.80 is: 144,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,139.20 : 148,881.60 = 96,028.80 : x
  2. Step 2: Convert to fraction form
    99,139.20/148,881.60 = 96,028.80/x
  3. Step 3: Cross multiply
    99,139.20x = 148,881.60 × 96,028.80
  4. Step 4: Simplify right side
    99,139.20x = 14,296,921,390.08
  5. Step 5: Solve for x
    x = 14,296,921,390.08/99,139.20
  6. Step 6: Final answer
    x = 144,210.58

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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.