Home / 111,623.90-153,951.89-73,422.68

Finding the Fourth Proportional to 111,623.90, 153,951.89 and 73,422.68

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Solution

The fourth proportional to 111,623.90, 153,951.89 and 73,422.68 is: 101,264.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,623.90 : 153,951.89 = 73,422.68 : x
  2. Step 2: Convert to fraction form
    111,623.90/153,951.89 = 73,422.68/x
  3. Step 3: Cross multiply
    111,623.90x = 153,951.89 × 73,422.68
  4. Step 4: Simplify right side
    111,623.90x = 11,303,559,217.99
  5. Step 5: Solve for x
    x = 11,303,559,217.99/111,623.90
  6. Step 6: Final answer
    x = 101,264.69

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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.