Home / 111,821.04-154,312.56-61,518.96

Finding the Fourth Proportional to 111,821.04, 154,312.56 and 61,518.96

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Solution

The fourth proportional to 111,821.04, 154,312.56 and 61,518.96 is: 84,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,821.04 : 154,312.56 = 61,518.96 : x
  2. Step 2: Convert to fraction form
    111,821.04/154,312.56 = 61,518.96/x
  3. Step 3: Cross multiply
    111,821.04x = 154,312.56 × 61,518.96
  4. Step 4: Simplify right side
    111,821.04x = 9,493,148,206.14
  5. Step 5: Solve for x
    x = 9,493,148,206.14/111,821.04
  6. Step 6: Final answer
    x = 84,895.90

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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.