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Finding the Fourth Proportional to 96,285.80, 144,428.70 and 68,292.20

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Solution

The fourth proportional to 96,285.80, 144,428.70 and 68,292.20 is: 102,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,285.80 : 144,428.70 = 68,292.20 : x
  2. Step 2: Convert to fraction form
    96,285.80/144,428.70 = 68,292.20/x
  3. Step 3: Cross multiply
    96,285.80x = 144,428.70 × 68,292.20
  4. Step 4: Simplify right side
    96,285.80x = 9,863,353,666.14
  5. Step 5: Solve for x
    x = 9,863,353,666.14/96,285.80
  6. Step 6: Final answer
    x = 102,438.30

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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.