Home / 144,013.14-198,711.36-83,561.76

Finding the Fourth Proportional to 144,013.14, 198,711.36 and 83,561.76

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Solution

The fourth proportional to 144,013.14, 198,711.36 and 83,561.76 is: 115,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,013.14 : 198,711.36 = 83,561.76 : x
  2. Step 2: Convert to fraction form
    144,013.14/198,711.36 = 83,561.76/x
  3. Step 3: Cross multiply
    144,013.14x = 198,711.36 × 83,561.76
  4. Step 4: Simplify right side
    144,013.14x = 16,604,670,973.59
  5. Step 5: Solve for x
    x = 16,604,670,973.59/144,013.14
  6. Step 6: Final answer
    x = 115,299.69

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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.