Home / 109,536.57-163,984.50-99,030.78

Finding the Fourth Proportional to 109,536.57, 163,984.50 and 99,030.78

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Solution

The fourth proportional to 109,536.57, 163,984.50 and 99,030.78 is: 148,256.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,536.57 : 163,984.50 = 99,030.78 : x
  2. Step 2: Convert to fraction form
    109,536.57/163,984.50 = 99,030.78/x
  3. Step 3: Cross multiply
    109,536.57x = 163,984.50 × 99,030.78
  4. Step 4: Simplify right side
    109,536.57x = 16,239,512,942.91
  5. Step 5: Solve for x
    x = 16,239,512,942.91/109,536.57
  6. Step 6: Final answer
    x = 148,256.54

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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.