Home / 111,278.28-153,504.90-84,376.36

Finding the Fourth Proportional to 111,278.28, 153,504.90 and 84,376.36

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Solution

The fourth proportional to 111,278.28, 153,504.90 and 84,376.36 is: 116,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,278.28 : 153,504.90 = 84,376.36 : x
  2. Step 2: Convert to fraction form
    111,278.28/153,504.90 = 84,376.36/x
  3. Step 3: Cross multiply
    111,278.28x = 153,504.90 × 84,376.36
  4. Step 4: Simplify right side
    111,278.28x = 12,952,184,320.40
  5. Step 5: Solve for x
    x = 12,952,184,320.40/111,278.28
  6. Step 6: Final answer
    x = 116,394.54

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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.