Home / 117,591.14-162,343.10-77,421.67

Finding the Fourth Proportional to 117,591.14, 162,343.10 and 77,421.67

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Solution

The fourth proportional to 117,591.14, 162,343.10 and 77,421.67 is: 106,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,591.14 : 162,343.10 = 77,421.67 : x
  2. Step 2: Convert to fraction form
    117,591.14/162,343.10 = 77,421.67/x
  3. Step 3: Cross multiply
    117,591.14x = 162,343.10 × 77,421.67
  4. Step 4: Simplify right side
    117,591.14x = 12,568,873,702.67
  5. Step 5: Solve for x
    x = 12,568,873,702.67/117,591.14
  6. Step 6: Final answer
    x = 106,886.23

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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.