Home / 128,030.73-191,937.66-53,104.11

Finding the Fourth Proportional to 128,030.73, 191,937.66 and 53,104.11

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Solution

The fourth proportional to 128,030.73, 191,937.66 and 53,104.11 is: 79,611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,030.73 : 191,937.66 = 53,104.11 : x
  2. Step 2: Convert to fraction form
    128,030.73/191,937.66 = 53,104.11/x
  3. Step 3: Cross multiply
    128,030.73x = 191,937.66 × 53,104.11
  4. Step 4: Simplify right side
    128,030.73x = 10,192,678,770.53
  5. Step 5: Solve for x
    x = 10,192,678,770.53/128,030.73
  6. Step 6: Final answer
    x = 79,611.19

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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.