Home / 107,688.03-161,532.01-28,800.21

Finding the Fourth Proportional to 107,688.03, 161,532.01 and 28,800.21

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Solution

The fourth proportional to 107,688.03, 161,532.01 and 28,800.21 is: 43,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,688.03 : 161,532.01 = 28,800.21 : x
  2. Step 2: Convert to fraction form
    107,688.03/161,532.01 = 28,800.21/x
  3. Step 3: Cross multiply
    107,688.03x = 161,532.01 × 28,800.21
  4. Step 4: Simplify right side
    107,688.03x = 4,652,155,333.89
  5. Step 5: Solve for x
    x = 4,652,155,333.89/107,688.03
  6. Step 6: Final answer
    x = 43,200.30

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1.5x scale

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.