Home / 134,232.20-201,501.90-78,859.40

Finding the Fourth Proportional to 134,232.20, 201,501.90 and 78,859.40

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Solution

The fourth proportional to 134,232.20, 201,501.90 and 78,859.40 is: 118,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,232.20 : 201,501.90 = 78,859.40 : x
  2. Step 2: Convert to fraction form
    134,232.20/201,501.90 = 78,859.40/x
  3. Step 3: Cross multiply
    134,232.20x = 201,501.90 × 78,859.40
  4. Step 4: Simplify right side
    134,232.20x = 15,890,318,932.86
  5. Step 5: Solve for x
    x = 15,890,318,932.86/134,232.20
  6. Step 6: Final answer
    x = 118,379.34

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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.