Home / 111,308.07-153,624.87-84,405.23

Finding the Fourth Proportional to 111,308.07, 153,624.87 and 84,405.23

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Solution

The fourth proportional to 111,308.07, 153,624.87 and 84,405.23 is: 116,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,308.07 : 153,624.87 = 84,405.23 : x
  2. Step 2: Convert to fraction form
    111,308.07/153,624.87 = 84,405.23/x
  3. Step 3: Cross multiply
    111,308.07x = 153,624.87 × 84,405.23
  4. Step 4: Simplify right side
    111,308.07x = 12,966,741,717.95
  5. Step 5: Solve for x
    x = 12,966,741,717.95/111,308.07
  6. Step 6: Final answer
    x = 116,494.17

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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.