Home / 208,336.59-312,439.95-75,199.32

Finding the Fourth Proportional to 208,336.59, 312,439.95 and 75,199.32

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Solution

The fourth proportional to 208,336.59, 312,439.95 and 75,199.32 is: 112,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,336.59 : 312,439.95 = 75,199.32 : x
  2. Step 2: Convert to fraction form
    208,336.59/312,439.95 = 75,199.32/x
  3. Step 3: Cross multiply
    208,336.59x = 312,439.95 × 75,199.32
  4. Step 4: Simplify right side
    208,336.59x = 23,495,271,780.83
  5. Step 5: Solve for x
    x = 23,495,271,780.83/208,336.59
  6. Step 6: Final answer
    x = 112,775.54

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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.