Home / 100,938.24-151,402.56-30,812.16

Finding the Fourth Proportional to 100,938.24, 151,402.56 and 30,812.16

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Solution

The fourth proportional to 100,938.24, 151,402.56 and 30,812.16 is: 46,216.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,938.24 : 151,402.56 = 30,812.16 : x
  2. Step 2: Convert to fraction form
    100,938.24/151,402.56 = 30,812.16/x
  3. Step 3: Cross multiply
    100,938.24x = 151,402.56 × 30,812.16
  4. Step 4: Simplify right side
    100,938.24x = 4,665,039,903.13
  5. Step 5: Solve for x
    x = 4,665,039,903.13/100,938.24
  6. Step 6: Final answer
    x = 46,216.77

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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.