Home / 110,115.60-151,983.76-72,393.36

Finding the Fourth Proportional to 110,115.60, 151,983.76 and 72,393.36

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Solution

The fourth proportional to 110,115.60, 151,983.76 and 72,393.36 is: 99,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,115.60 : 151,983.76 = 72,393.36 : x
  2. Step 2: Convert to fraction form
    110,115.60/151,983.76 = 72,393.36/x
  3. Step 3: Cross multiply
    110,115.60x = 151,983.76 × 72,393.36
  4. Step 4: Simplify right side
    110,115.60x = 11,002,615,051.83
  5. Step 5: Solve for x
    x = 11,002,615,051.83/110,115.60
  6. Step 6: Final answer
    x = 99,918.77

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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.