Home / 111,933.40-154,463.61-64,153.66

Finding the Fourth Proportional to 111,933.40, 154,463.61 and 64,153.66

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Solution

The fourth proportional to 111,933.40, 154,463.61 and 64,153.66 is: 88,529.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,933.40 : 154,463.61 = 64,153.66 : x
  2. Step 2: Convert to fraction form
    111,933.40/154,463.61 = 64,153.66/x
  3. Step 3: Cross multiply
    111,933.40x = 154,463.61 × 64,153.66
  4. Step 4: Simplify right side
    111,933.40x = 9,909,405,918.31
  5. Step 5: Solve for x
    x = 9,909,405,918.31/111,933.40
  6. Step 6: Final answer
    x = 88,529.48

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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.