Home / 111,889.95-154,403.58-64,110.07

Finding the Fourth Proportional to 111,889.95, 154,403.58 and 64,110.07

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Solution

The fourth proportional to 111,889.95, 154,403.58 and 64,110.07 is: 88,469.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,889.95 : 154,403.58 = 64,110.07 : x
  2. Step 2: Convert to fraction form
    111,889.95/154,403.58 = 64,110.07/x
  3. Step 3: Cross multiply
    111,889.95x = 154,403.58 × 64,110.07
  4. Step 4: Simplify right side
    111,889.95x = 9,898,824,322.05
  5. Step 5: Solve for x
    x = 9,898,824,322.05/111,889.95
  6. Step 6: Final answer
    x = 88,469.29

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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.