Home / 111,739.04-154,193.44-61,438.08

Finding the Fourth Proportional to 111,739.04, 154,193.44 and 61,438.08

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Solution

The fourth proportional to 111,739.04, 154,193.44 and 61,438.08 is: 84,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,739.04 : 154,193.44 = 61,438.08 : x
  2. Step 2: Convert to fraction form
    111,739.04/154,193.44 = 61,438.08/x
  3. Step 3: Cross multiply
    111,739.04x = 154,193.44 × 61,438.08
  4. Step 4: Simplify right side
    111,739.04x = 9,473,348,902.20
  5. Step 5: Solve for x
    x = 9,473,348,902.20/111,739.04
  6. Step 6: Final answer
    x = 84,781.01

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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.