Home / 102,782.71-141,883.86-62,509.41

Finding the Fourth Proportional to 102,782.71, 141,883.86 and 62,509.41

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Solution

The fourth proportional to 102,782.71, 141,883.86 and 62,509.41 is: 86,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,782.71 : 141,883.86 = 62,509.41 : x
  2. Step 2: Convert to fraction form
    102,782.71/141,883.86 = 62,509.41/x
  3. Step 3: Cross multiply
    102,782.71x = 141,883.86 × 62,509.41
  4. Step 4: Simplify right side
    102,782.71x = 8,869,076,611.53
  5. Step 5: Solve for x
    x = 8,869,076,611.53/102,782.71
  6. Step 6: Final answer
    x = 86,289.58

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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.