Home / 128,097.20-176,773.23-70,740.09

Finding the Fourth Proportional to 128,097.20, 176,773.23 and 70,740.09

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Solution

The fourth proportional to 128,097.20, 176,773.23 and 70,740.09 is: 97,620.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,097.20 : 176,773.23 = 70,740.09 : x
  2. Step 2: Convert to fraction form
    128,097.20/176,773.23 = 70,740.09/x
  3. Step 3: Cross multiply
    128,097.20x = 176,773.23 × 70,740.09
  4. Step 4: Simplify right side
    128,097.20x = 12,504,954,199.79
  5. Step 5: Solve for x
    x = 12,504,954,199.79/128,097.20
  6. Step 6: Final answer
    x = 97,620.83

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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.