Home / 126,614.61-189,851.81-51,787.31

Finding the Fourth Proportional to 126,614.61, 189,851.81 and 51,787.31

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Solution

The fourth proportional to 126,614.61, 189,851.81 and 51,787.31 is: 77,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,614.61 : 189,851.81 = 51,787.31 : x
  2. Step 2: Convert to fraction form
    126,614.61/189,851.81 = 51,787.31/x
  3. Step 3: Cross multiply
    126,614.61x = 189,851.81 × 51,787.31
  4. Step 4: Simplify right side
    126,614.61x = 9,831,913,330.34
  5. Step 5: Solve for x
    x = 9,831,913,330.34/126,614.61
  6. Step 6: Final answer
    x = 77,652.28

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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.