Home / 111,605.12-154,014.96-61,307.36

Finding the Fourth Proportional to 111,605.12, 154,014.96 and 61,307.36

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Solution

The fourth proportional to 111,605.12, 154,014.96 and 61,307.36 is: 84,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,605.12 : 154,014.96 = 61,307.36 : x
  2. Step 2: Convert to fraction form
    111,605.12/154,014.96 = 61,307.36/x
  3. Step 3: Cross multiply
    111,605.12x = 154,014.96 × 61,307.36
  4. Step 4: Simplify right side
    111,605.12x = 9,442,250,598.11
  5. Step 5: Solve for x
    x = 9,442,250,598.11/111,605.12
  6. Step 6: Final answer
    x = 84,604.10

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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.