Home / 143,387.02-215,119.81-43,550.47

Finding the Fourth Proportional to 143,387.02, 215,119.81 and 43,550.47

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Solution

The fourth proportional to 143,387.02, 215,119.81 and 43,550.47 is: 65,337.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,387.02 : 215,119.81 = 43,550.47 : x
  2. Step 2: Convert to fraction form
    143,387.02/215,119.81 = 43,550.47/x
  3. Step 3: Cross multiply
    143,387.02x = 215,119.81 × 43,550.47
  4. Step 4: Simplify right side
    143,387.02x = 9,368,567,756.21
  5. Step 5: Solve for x
    x = 9,368,567,756.21/143,387.02
  6. Step 6: Final answer
    x = 65,337.63

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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.