Home / 145,983.40-218,982.30-75,999.40

Finding the Fourth Proportional to 145,983.40, 218,982.30 and 75,999.40

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Solution

The fourth proportional to 145,983.40, 218,982.30 and 75,999.40 is: 114,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,983.40 : 218,982.30 = 75,999.40 : x
  2. Step 2: Convert to fraction form
    145,983.40/218,982.30 = 75,999.40/x
  3. Step 3: Cross multiply
    145,983.40x = 218,982.30 × 75,999.40
  4. Step 4: Simplify right side
    145,983.40x = 16,642,523,410.62
  5. Step 5: Solve for x
    x = 16,642,523,410.62/145,983.40
  6. Step 6: Final answer
    x = 114,002.85

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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.