Home / 150,769.86-208,089.27-112,720.38

Finding the Fourth Proportional to 150,769.86, 208,089.27 and 112,720.38

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Solution

The fourth proportional to 150,769.86, 208,089.27 and 112,720.38 is: 155,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,769.86 : 208,089.27 = 112,720.38 : x
  2. Step 2: Convert to fraction form
    150,769.86/208,089.27 = 112,720.38/x
  3. Step 3: Cross multiply
    150,769.86x = 208,089.27 × 112,720.38
  4. Step 4: Simplify right side
    150,769.86x = 23,455,901,588.32
  5. Step 5: Solve for x
    x = 23,455,901,588.32/150,769.86
  6. Step 6: Final answer
    x = 155,574.21

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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.