Home / 111,938.10-167,907.15-76,508.70

Finding the Fourth Proportional to 111,938.10, 167,907.15 and 76,508.70

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Solution

The fourth proportional to 111,938.10, 167,907.15 and 76,508.70 is: 114,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,938.10 : 167,907.15 = 76,508.70 : x
  2. Step 2: Convert to fraction form
    111,938.10/167,907.15 = 76,508.70/x
  3. Step 3: Cross multiply
    111,938.10x = 167,907.15 × 76,508.70
  4. Step 4: Simplify right side
    111,938.10x = 12,846,357,767.21
  5. Step 5: Solve for x
    x = 12,846,357,767.21/111,938.10
  6. Step 6: Final answer
    x = 114,763.05

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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.