Home / 118,830.12-178,343.64-59,682.72

Finding the Fourth Proportional to 118,830.12, 178,343.64 and 59,682.72

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Solution

The fourth proportional to 118,830.12, 178,343.64 and 59,682.72 is: 89,573.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,830.12 : 178,343.64 = 59,682.72 : x
  2. Step 2: Convert to fraction form
    118,830.12/178,343.64 = 59,682.72/x
  3. Step 3: Cross multiply
    118,830.12x = 178,343.64 × 59,682.72
  4. Step 4: Simplify right side
    118,830.12x = 10,644,033,529.90
  5. Step 5: Solve for x
    x = 10,644,033,529.90/118,830.12
  6. Step 6: Final answer
    x = 89,573.53

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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.