Home / 99,815.40-148,937.64-96,432.84

Finding the Fourth Proportional to 99,815.40, 148,937.64 and 96,432.84

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Solution

The fourth proportional to 99,815.40, 148,937.64 and 96,432.84 is: 143,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,815.40 : 148,937.64 = 96,432.84 : x
  2. Step 2: Convert to fraction form
    99,815.40/148,937.64 = 96,432.84/x
  3. Step 3: Cross multiply
    99,815.40x = 148,937.64 × 96,432.84
  4. Step 4: Simplify right side
    99,815.40x = 14,362,479,608.10
  5. Step 5: Solve for x
    x = 14,362,479,608.10/99,815.40
  6. Step 6: Final answer
    x = 143,890.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.