Home / 152,285.20-210,156.12-83,380.68

Finding the Fourth Proportional to 152,285.20, 210,156.12 and 83,380.68

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Solution

The fourth proportional to 152,285.20, 210,156.12 and 83,380.68 is: 115,066.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,285.20 : 210,156.12 = 83,380.68 : x
  2. Step 2: Convert to fraction form
    152,285.20/210,156.12 = 83,380.68/x
  3. Step 3: Cross multiply
    152,285.20x = 210,156.12 × 83,380.68
  4. Step 4: Simplify right side
    152,285.20x = 17,522,960,191.76
  5. Step 5: Solve for x
    x = 17,522,960,191.76/152,285.20
  6. Step 6: Final answer
    x = 115,066.73

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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.