Home / 122,305.17-168,782.86-73,900.38

Finding the Fourth Proportional to 122,305.17, 168,782.86 and 73,900.38

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Solution

The fourth proportional to 122,305.17, 168,782.86 and 73,900.38 is: 101,983.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,305.17 : 168,782.86 = 73,900.38 : x
  2. Step 2: Convert to fraction form
    122,305.17/168,782.86 = 73,900.38/x
  3. Step 3: Cross multiply
    122,305.17x = 168,782.86 × 73,900.38
  4. Step 4: Simplify right side
    122,305.17x = 12,473,117,801.11
  5. Step 5: Solve for x
    x = 12,473,117,801.11/122,305.17
  6. Step 6: Final answer
    x = 101,983.57

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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.