Home / 111,564.39-153,957.28-63,165.06

Finding the Fourth Proportional to 111,564.39, 153,957.28 and 63,165.06

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Solution

The fourth proportional to 111,564.39, 153,957.28 and 63,165.06 is: 87,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,564.39 : 153,957.28 = 63,165.06 : x
  2. Step 2: Convert to fraction form
    111,564.39/153,957.28 = 63,165.06/x
  3. Step 3: Cross multiply
    111,564.39x = 153,957.28 × 63,165.06
  4. Step 4: Simplify right side
    111,564.39x = 9,724,720,828.64
  5. Step 5: Solve for x
    x = 9,724,720,828.64/111,564.39
  6. Step 6: Final answer
    x = 87,166.89

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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.