Home / 152,286.20-210,157.50-83,381.68

Finding the Fourth Proportional to 152,286.20, 210,157.50 and 83,381.68

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Solution

The fourth proportional to 152,286.20, 210,157.50 and 83,381.68 is: 115,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,286.20 : 210,157.50 = 83,381.68 : x
  2. Step 2: Convert to fraction form
    152,286.20/210,157.50 = 83,381.68/x
  3. Step 3: Cross multiply
    152,286.20x = 210,157.50 × 83,381.68
  4. Step 4: Simplify right side
    152,286.20x = 17,523,285,414.60
  5. Step 5: Solve for x
    x = 17,523,285,414.60/152,286.20
  6. Step 6: Final answer
    x = 115,068.11

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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.