Home / 107,811.40-161,717.10-99,938.20

Finding the Fourth Proportional to 107,811.40, 161,717.10 and 99,938.20

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Solution

The fourth proportional to 107,811.40, 161,717.10 and 99,938.20 is: 149,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,811.40 : 161,717.10 = 99,938.20 : x
  2. Step 2: Convert to fraction form
    107,811.40/161,717.10 = 99,938.20/x
  3. Step 3: Cross multiply
    107,811.40x = 161,717.10 × 99,938.20
  4. Step 4: Simplify right side
    107,811.40x = 16,161,715,883.22
  5. Step 5: Solve for x
    x = 16,161,715,883.22/107,811.40
  6. Step 6: Final answer
    x = 149,907.30

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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.