Home / 111,623.40-154,037.70-63,887.40

Finding the Fourth Proportional to 111,623.40, 154,037.70 and 63,887.40

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Solution

The fourth proportional to 111,623.40, 154,037.70 and 63,887.40 is: 88,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,623.40 : 154,037.70 = 63,887.40 : x
  2. Step 2: Convert to fraction form
    111,623.40/154,037.70 = 63,887.40/x
  3. Step 3: Cross multiply
    111,623.40x = 154,037.70 × 63,887.40
  4. Step 4: Simplify right side
    111,623.40x = 9,841,068,154.98
  5. Step 5: Solve for x
    x = 9,841,068,154.98/111,623.40
  6. Step 6: Final answer
    x = 88,163.13

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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.