Home / 101,746.90-140,263.23-71,439.94

Finding the Fourth Proportional to 101,746.90, 140,263.23 and 71,439.94

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Solution

The fourth proportional to 101,746.90, 140,263.23 and 71,439.94 is: 98,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,746.90 : 140,263.23 = 71,439.94 : x
  2. Step 2: Convert to fraction form
    101,746.90/140,263.23 = 71,439.94/x
  3. Step 3: Cross multiply
    101,746.90x = 140,263.23 × 71,439.94
  4. Step 4: Simplify right side
    101,746.90x = 10,020,396,735.41
  5. Step 5: Solve for x
    x = 10,020,396,735.41/101,746.90
  6. Step 6: Final answer
    x = 98,483.56

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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.