Home / 122,303.28-168,780.20-73,898.48

Finding the Fourth Proportional to 122,303.28, 168,780.20 and 73,898.48

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Solution

The fourth proportional to 122,303.28, 168,780.20 and 73,898.48 is: 101,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,303.28 : 168,780.20 = 73,898.48 : x
  2. Step 2: Convert to fraction form
    122,303.28/168,780.20 = 73,898.48/x
  3. Step 3: Cross multiply
    122,303.28x = 168,780.20 × 73,898.48
  4. Step 4: Simplify right side
    122,303.28x = 12,472,600,234.10
  5. Step 5: Solve for x
    x = 12,472,600,234.10/122,303.28
  6. Step 6: Final answer
    x = 101,980.91

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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.