Home / 143,389.02-215,122.81-43,552.47

Finding the Fourth Proportional to 143,389.02, 215,122.81 and 43,552.47

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Solution

The fourth proportional to 143,389.02, 215,122.81 and 43,552.47 is: 65,340.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,389.02 : 215,122.81 = 43,552.47 : x
  2. Step 2: Convert to fraction form
    143,389.02/215,122.81 = 43,552.47/x
  3. Step 3: Cross multiply
    143,389.02x = 215,122.81 × 43,552.47
  4. Step 4: Simplify right side
    143,389.02x = 9,369,129,728.84
  5. Step 5: Solve for x
    x = 9,369,129,728.84/143,389.02
  6. Step 6: Final answer
    x = 65,340.64

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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.