Home / 101,731.07-140,383.15-56,406.35

Finding the Fourth Proportional to 101,731.07, 140,383.15 and 56,406.35

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Solution

The fourth proportional to 101,731.07, 140,383.15 and 56,406.35 is: 77,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,731.07 : 140,383.15 = 56,406.35 : x
  2. Step 2: Convert to fraction form
    101,731.07/140,383.15 = 56,406.35/x
  3. Step 3: Cross multiply
    101,731.07x = 140,383.15 × 56,406.35
  4. Step 4: Simplify right side
    101,731.07x = 7,918,500,250.07
  5. Step 5: Solve for x
    x = 7,918,500,250.07/101,731.07
  6. Step 6: Final answer
    x = 77,837.58

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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.