Home / 101,740.46-140,401.60-56,417.31

Finding the Fourth Proportional to 101,740.46, 140,401.60 and 56,417.31

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Solution

The fourth proportional to 101,740.46, 140,401.60 and 56,417.31 is: 77,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,740.46 : 140,401.60 = 56,417.31 : x
  2. Step 2: Convert to fraction form
    101,740.46/140,401.60 = 56,417.31/x
  3. Step 3: Cross multiply
    101,740.46x = 140,401.60 × 56,417.31
  4. Step 4: Simplify right side
    101,740.46x = 7,921,080,768.00
  5. Step 5: Solve for x
    x = 7,921,080,768.00/101,740.46
  6. Step 6: Final answer
    x = 77,855.76

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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.