Home / 108,987.07-163,529.11-55,650.87

Finding the Fourth Proportional to 108,987.07, 163,529.11 and 55,650.87

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Solution

The fourth proportional to 108,987.07, 163,529.11 and 55,650.87 is: 83,501.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,987.07 : 163,529.11 = 55,650.87 : x
  2. Step 2: Convert to fraction form
    108,987.07/163,529.11 = 55,650.87/x
  3. Step 3: Cross multiply
    108,987.07x = 163,529.11 × 55,650.87
  4. Step 4: Simplify right side
    108,987.07x = 9,100,537,241.83
  5. Step 5: Solve for x
    x = 9,100,537,241.83/108,987.07
  6. Step 6: Final answer
    x = 83,501.07

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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.