Home / 111,713.48-154,160.70-61,412.12

Finding the Fourth Proportional to 111,713.48, 154,160.70 and 61,412.12

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Solution

The fourth proportional to 111,713.48, 154,160.70 and 61,412.12 is: 84,746.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,713.48 : 154,160.70 = 61,412.12 : x
  2. Step 2: Convert to fraction form
    111,713.48/154,160.70 = 61,412.12/x
  3. Step 3: Cross multiply
    111,713.48x = 154,160.70 × 61,412.12
  4. Step 4: Simplify right side
    111,713.48x = 9,467,335,407.68
  5. Step 5: Solve for x
    x = 9,467,335,407.68/111,713.48
  6. Step 6: Final answer
    x = 84,746.58

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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.