Home / 231,154.39-319,015.70-140,503.51

Finding the Fourth Proportional to 231,154.39, 319,015.70 and 140,503.51

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Solution

The fourth proportional to 231,154.39, 319,015.70 and 140,503.51 is: 193,908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,154.39 : 319,015.70 = 140,503.51 : x
  2. Step 2: Convert to fraction form
    231,154.39/319,015.70 = 140,503.51/x
  3. Step 3: Cross multiply
    231,154.39x = 319,015.70 × 140,503.51
  4. Step 4: Simplify right side
    231,154.39x = 44,822,825,595.11
  5. Step 5: Solve for x
    x = 44,822,825,595.11/231,154.39
  6. Step 6: Final answer
    x = 193,908.61

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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.