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Finding the Fourth Proportional to 134,710.76, 185,823.68 and 84,322.28

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Solution

The fourth proportional to 134,710.76, 185,823.68 and 84,322.28 is: 116,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,710.76 : 185,823.68 = 84,322.28 : x
  2. Step 2: Convert to fraction form
    134,710.76/185,823.68 = 84,322.28/x
  3. Step 3: Cross multiply
    134,710.76x = 185,823.68 × 84,322.28
  4. Step 4: Simplify right side
    134,710.76x = 15,669,076,375.59
  5. Step 5: Solve for x
    x = 15,669,076,375.59/134,710.76
  6. Step 6: Final answer
    x = 116,316.44

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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.