Home / 111,661.47-154,102.28-61,370.91

Finding the Fourth Proportional to 111,661.47, 154,102.28 and 61,370.91

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Solution

The fourth proportional to 111,661.47, 154,102.28 and 61,370.91 is: 84,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,661.47 : 154,102.28 = 61,370.91 : x
  2. Step 2: Convert to fraction form
    111,661.47/154,102.28 = 61,370.91/x
  3. Step 3: Cross multiply
    111,661.47x = 154,102.28 × 61,370.91
  4. Step 4: Simplify right side
    111,661.47x = 9,457,396,849.82
  5. Step 5: Solve for x
    x = 9,457,396,849.82/111,661.47
  6. Step 6: Final answer
    x = 84,697.05

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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.