Home / 110,103.60-151,967.16-72,381.36

Finding the Fourth Proportional to 110,103.60, 151,967.16 and 72,381.36

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Solution

The fourth proportional to 110,103.60, 151,967.16 and 72,381.36 is: 99,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,103.60 : 151,967.16 = 72,381.36 : x
  2. Step 2: Convert to fraction form
    110,103.60/151,967.16 = 72,381.36/x
  3. Step 3: Cross multiply
    110,103.60x = 151,967.16 × 72,381.36
  4. Step 4: Simplify right side
    110,103.60x = 10,999,589,716.14
  5. Step 5: Solve for x
    x = 10,999,589,716.14/110,103.60
  6. Step 6: Final answer
    x = 99,902.18

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1.5x scale

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.