Home / 101,610.43-140,218.05-56,290.32

Finding the Fourth Proportional to 101,610.43, 140,218.05 and 56,290.32

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Solution

The fourth proportional to 101,610.43, 140,218.05 and 56,290.32 is: 77,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,610.43 : 140,218.05 = 56,290.32 : x
  2. Step 2: Convert to fraction form
    101,610.43/140,218.05 = 56,290.32/x
  3. Step 3: Cross multiply
    101,610.43x = 140,218.05 × 56,290.32
  4. Step 4: Simplify right side
    101,610.43x = 7,892,919,115.36
  5. Step 5: Solve for x
    x = 7,892,919,115.36/101,610.43
  6. Step 6: Final answer
    x = 77,678.24

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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.