Home / 101,920.49-140,645.54-56,601.35

Finding the Fourth Proportional to 101,920.49, 140,645.54 and 56,601.35

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Solution

The fourth proportional to 101,920.49, 140,645.54 and 56,601.35 is: 78,107.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,920.49 : 140,645.54 = 56,601.35 : x
  2. Step 2: Convert to fraction form
    101,920.49/140,645.54 = 56,601.35/x
  3. Step 3: Cross multiply
    101,920.49x = 140,645.54 × 56,601.35
  4. Step 4: Simplify right side
    101,920.49x = 7,960,727,152.47
  5. Step 5: Solve for x
    x = 7,960,727,152.47/101,920.49
  6. Step 6: Final answer
    x = 78,107.23

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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.