Home / 156,643.32-234,989.46-51,438.36

Finding the Fourth Proportional to 156,643.32, 234,989.46 and 51,438.36

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Solution

The fourth proportional to 156,643.32, 234,989.46 and 51,438.36 is: 77,165.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,643.32 : 234,989.46 = 51,438.36 : x
  2. Step 2: Convert to fraction form
    156,643.32/234,989.46 = 51,438.36/x
  3. Step 3: Cross multiply
    156,643.32x = 234,989.46 × 51,438.36
  4. Step 4: Simplify right side
    156,643.32x = 12,087,472,439.69
  5. Step 5: Solve for x
    x = 12,087,472,439.69/156,643.32
  6. Step 6: Final answer
    x = 77,165.58

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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.