Home / 108,875.75-163,323.93-42,321.02

Finding the Fourth Proportional to 108,875.75, 163,323.93 and 42,321.02

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Solution

The fourth proportional to 108,875.75, 163,323.93 and 42,321.02 is: 63,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,875.75 : 163,323.93 = 42,321.02 : x
  2. Step 2: Convert to fraction form
    108,875.75/163,323.93 = 42,321.02/x
  3. Step 3: Cross multiply
    108,875.75x = 163,323.93 × 42,321.02
  4. Step 4: Simplify right side
    108,875.75x = 6,912,035,308.01
  5. Step 5: Solve for x
    x = 6,912,035,308.01/108,875.75
  6. Step 6: Final answer
    x = 63,485.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.