Home / 208,183.10-287,292.96-112,689.54

Finding the Fourth Proportional to 208,183.10, 287,292.96 and 112,689.54

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Solution

The fourth proportional to 208,183.10, 287,292.96 and 112,689.54 is: 155,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,183.10 : 287,292.96 = 112,689.54 : x
  2. Step 2: Convert to fraction form
    208,183.10/287,292.96 = 112,689.54/x
  3. Step 3: Cross multiply
    208,183.10x = 287,292.96 × 112,689.54
  4. Step 4: Simplify right side
    208,183.10x = 32,374,911,507.64
  5. Step 5: Solve for x
    x = 32,374,911,507.64/208,183.10
  6. Step 6: Final answer
    x = 155,511.72

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1.5x scale

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.