Home / 107,950.10-149,017.20-67,686.80

Finding the Fourth Proportional to 107,950.10, 149,017.20 and 67,686.80

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Solution

The fourth proportional to 107,950.10, 149,017.20 and 67,686.80 is: 93,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,950.10 : 149,017.20 = 67,686.80 : x
  2. Step 2: Convert to fraction form
    107,950.10/149,017.20 = 67,686.80/x
  3. Step 3: Cross multiply
    107,950.10x = 149,017.20 × 67,686.80
  4. Step 4: Simplify right side
    107,950.10x = 10,086,497,412.96
  5. Step 5: Solve for x
    x = 10,086,497,412.96/107,950.10
  6. Step 6: Final answer
    x = 93,436.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.