Home / 128,601.10-193,096.05-99,052.30

Finding the Fourth Proportional to 128,601.10, 193,096.05 and 99,052.30

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Solution

The fourth proportional to 128,601.10, 193,096.05 and 99,052.30 is: 148,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,601.10 : 193,096.05 = 99,052.30 : x
  2. Step 2: Convert to fraction form
    128,601.10/193,096.05 = 99,052.30/x
  3. Step 3: Cross multiply
    128,601.10x = 193,096.05 × 99,052.30
  4. Step 4: Simplify right side
    128,601.10x = 19,126,607,873.42
  5. Step 5: Solve for x
    x = 19,126,607,873.42/128,601.10
  6. Step 6: Final answer
    x = 148,728.18

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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.