Home / 100,848.12-139,170.42-55,526.28

Finding the Fourth Proportional to 100,848.12, 139,170.42 and 55,526.28

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Solution

The fourth proportional to 100,848.12, 139,170.42 and 55,526.28 is: 76,626.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,848.12 : 139,170.42 = 55,526.28 : x
  2. Step 2: Convert to fraction form
    100,848.12/139,170.42 = 55,526.28/x
  3. Step 3: Cross multiply
    100,848.12x = 139,170.42 × 55,526.28
  4. Step 4: Simplify right side
    100,848.12x = 7,727,615,708.64
  5. Step 5: Solve for x
    x = 7,727,615,708.64/100,848.12
  6. Step 6: Final answer
    x = 76,626.27

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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.