Home / 118,815.40-178,271.10-52,268.20

Finding the Fourth Proportional to 118,815.40, 178,271.10 and 52,268.20

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Solution

The fourth proportional to 118,815.40, 178,271.10 and 52,268.20 is: 78,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,815.40 : 178,271.10 = 52,268.20 : x
  2. Step 2: Convert to fraction form
    118,815.40/178,271.10 = 52,268.20/x
  3. Step 3: Cross multiply
    118,815.40x = 178,271.10 × 52,268.20
  4. Step 4: Simplify right side
    118,815.40x = 9,317,909,509.02
  5. Step 5: Solve for x
    x = 9,317,909,509.02/118,815.40
  6. Step 6: Final answer
    x = 78,423.42

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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.