Home / 101,731.01-140,355.18-61,429.46

Finding the Fourth Proportional to 101,731.01, 140,355.18 and 61,429.46

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Solution

The fourth proportional to 101,731.01, 140,355.18 and 61,429.46 is: 84,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,731.01 : 140,355.18 = 61,429.46 : x
  2. Step 2: Convert to fraction form
    101,731.01/140,355.18 = 61,429.46/x
  3. Step 3: Cross multiply
    101,731.01x = 140,355.18 × 61,429.46
  4. Step 4: Simplify right side
    101,731.01x = 8,621,942,213.83
  5. Step 5: Solve for x
    x = 8,621,942,213.83/101,731.01
  6. Step 6: Final answer
    x = 84,752.35

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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.