Home / 99,714.38-149,548.77-28,636.45

Finding the Fourth Proportional to 99,714.38, 149,548.77 and 28,636.45

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Solution

The fourth proportional to 99,714.38, 149,548.77 and 28,636.45 is: 42,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,714.38 : 149,548.77 = 28,636.45 : x
  2. Step 2: Convert to fraction form
    99,714.38/149,548.77 = 28,636.45/x
  3. Step 3: Cross multiply
    99,714.38x = 149,548.77 × 28,636.45
  4. Step 4: Simplify right side
    99,714.38x = 4,282,545,500.79
  5. Step 5: Solve for x
    x = 4,282,545,500.79/99,714.38
  6. Step 6: Final answer
    x = 42,948.13

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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.