Home / 118,729.14-178,113.15-56,378.58

Finding the Fourth Proportional to 118,729.14, 178,113.15 and 56,378.58

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Solution

The fourth proportional to 118,729.14, 178,113.15 and 56,378.58 is: 84,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,729.14 : 178,113.15 = 56,378.58 : x
  2. Step 2: Convert to fraction form
    118,729.14/178,113.15 = 56,378.58/x
  3. Step 3: Cross multiply
    118,729.14x = 178,113.15 × 56,378.58
  4. Step 4: Simplify right side
    118,729.14x = 10,041,766,476.33
  5. Step 5: Solve for x
    x = 10,041,766,476.33/118,729.14
  6. Step 6: Final answer
    x = 84,577.10

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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.