Home / 145,546.02-200,787.15-105,195.87

Finding the Fourth Proportional to 145,546.02, 200,787.15 and 105,195.87

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Solution

The fourth proportional to 145,546.02, 200,787.15 and 105,195.87 is: 145,122.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,546.02 : 200,787.15 = 105,195.87 : x
  2. Step 2: Convert to fraction form
    145,546.02/200,787.15 = 105,195.87/x
  3. Step 3: Cross multiply
    145,546.02x = 200,787.15 × 105,195.87
  4. Step 4: Simplify right side
    145,546.02x = 21,121,978,929.07
  5. Step 5: Solve for x
    x = 21,121,978,929.07/145,546.02
  6. Step 6: Final answer
    x = 145,122.34

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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.