Home / 110,190.37-165,276.36-78,036.51

Finding the Fourth Proportional to 110,190.37, 165,276.36 and 78,036.51

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Solution

The fourth proportional to 110,190.37, 165,276.36 and 78,036.51 is: 117,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,190.37 : 165,276.36 = 78,036.51 : x
  2. Step 2: Convert to fraction form
    110,190.37/165,276.36 = 78,036.51/x
  3. Step 3: Cross multiply
    110,190.37x = 165,276.36 × 78,036.51
  4. Step 4: Simplify right side
    110,190.37x = 12,897,589,700.12
  5. Step 5: Solve for x
    x = 12,897,589,700.12/110,190.37
  6. Step 6: Final answer
    x = 117,048.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.