Home / 91,191.96-136,939.23-56,353.05

Finding the Fourth Proportional to 91,191.96, 136,939.23 and 56,353.05

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Solution

The fourth proportional to 91,191.96, 136,939.23 and 56,353.05 is: 84,623.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,191.96 : 136,939.23 = 56,353.05 : x
  2. Step 2: Convert to fraction form
    91,191.96/136,939.23 = 56,353.05/x
  3. Step 3: Cross multiply
    91,191.96x = 136,939.23 × 56,353.05
  4. Step 4: Simplify right side
    91,191.96x = 7,716,943,275.15
  5. Step 5: Solve for x
    x = 7,716,943,275.15/91,191.96
  6. Step 6: Final answer
    x = 84,623.07

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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.