Home / 111,964.18-154,503.48-61,663.18

Finding the Fourth Proportional to 111,964.18, 154,503.48 and 61,663.18

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Solution

The fourth proportional to 111,964.18, 154,503.48 and 61,663.18 is: 85,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,964.18 : 154,503.48 = 61,663.18 : x
  2. Step 2: Convert to fraction form
    111,964.18/154,503.48 = 61,663.18/x
  3. Step 3: Cross multiply
    111,964.18x = 154,503.48 × 61,663.18
  4. Step 4: Simplify right side
    111,964.18x = 9,527,175,897.87
  5. Step 5: Solve for x
    x = 9,527,175,897.87/111,964.18
  6. Step 6: Final answer
    x = 85,091.28

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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.