Home / 129,623.10-194,434.65-87,632.70

Finding the Fourth Proportional to 129,623.10, 194,434.65 and 87,632.70

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Solution

The fourth proportional to 129,623.10, 194,434.65 and 87,632.70 is: 131,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,623.10 : 194,434.65 = 87,632.70 : x
  2. Step 2: Convert to fraction form
    129,623.10/194,434.65 = 87,632.70/x
  3. Step 3: Cross multiply
    129,623.10x = 194,434.65 × 87,632.70
  4. Step 4: Simplify right side
    129,623.10x = 17,038,833,353.06
  5. Step 5: Solve for x
    x = 17,038,833,353.06/129,623.10
  6. Step 6: Final answer
    x = 131,449.05

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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.