Home / 150,435.81-207,570.75-89,155.01

Finding the Fourth Proportional to 150,435.81, 207,570.75 and 89,155.01

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Solution

The fourth proportional to 150,435.81, 207,570.75 and 89,155.01 is: 123,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,435.81 : 207,570.75 = 89,155.01 : x
  2. Step 2: Convert to fraction form
    150,435.81/207,570.75 = 89,155.01/x
  3. Step 3: Cross multiply
    150,435.81x = 207,570.75 × 89,155.01
  4. Step 4: Simplify right side
    150,435.81x = 18,505,971,254.10
  5. Step 5: Solve for x
    x = 18,505,971,254.10/150,435.81
  6. Step 6: Final answer
    x = 123,015.73

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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.