Home / 142,820.60-197,084.84-82,387.67

Finding the Fourth Proportional to 142,820.60, 197,084.84 and 82,387.67

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Solution

The fourth proportional to 142,820.60, 197,084.84 and 82,387.67 is: 113,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,820.60 : 197,084.84 = 82,387.67 : x
  2. Step 2: Convert to fraction form
    142,820.60/197,084.84 = 82,387.67/x
  3. Step 3: Cross multiply
    142,820.60x = 197,084.84 × 82,387.67
  4. Step 4: Simplify right side
    142,820.60x = 16,237,359,362.56
  5. Step 5: Solve for x
    x = 16,237,359,362.56/142,820.60
  6. Step 6: Final answer
    x = 113,690.60

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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.