Home / 117,488.12-162,141.50-66,500.76

Finding the Fourth Proportional to 117,488.12, 162,141.50 and 66,500.76

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Solution

The fourth proportional to 117,488.12, 162,141.50 and 66,500.76 is: 91,775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,488.12 : 162,141.50 = 66,500.76 : x
  2. Step 2: Convert to fraction form
    117,488.12/162,141.50 = 66,500.76/x
  3. Step 3: Cross multiply
    117,488.12x = 162,141.50 × 66,500.76
  4. Step 4: Simplify right side
    117,488.12x = 10,782,532,977.54
  5. Step 5: Solve for x
    x = 10,782,532,977.54/117,488.12
  6. Step 6: Final answer
    x = 91,775.52

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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.