Home / 156,653.11-234,769.19-85,469.08

Finding the Fourth Proportional to 156,653.11, 234,769.19 and 85,469.08

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Solution

The fourth proportional to 156,653.11, 234,769.19 and 85,469.08 is: 128,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,653.11 : 234,769.19 = 85,469.08 : x
  2. Step 2: Convert to fraction form
    156,653.11/234,769.19 = 85,469.08/x
  3. Step 3: Cross multiply
    156,653.11x = 234,769.19 × 85,469.08
  4. Step 4: Simplify right side
    156,653.11x = 20,065,506,681.65
  5. Step 5: Solve for x
    x = 20,065,506,681.65/156,653.11
  6. Step 6: Final answer
    x = 128,088.79

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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.