Home / 208,102.23-287,181.83-112,608.92

Finding the Fourth Proportional to 208,102.23, 287,181.83 and 112,608.92

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Solution

The fourth proportional to 208,102.23, 287,181.83 and 112,608.92 is: 155,400.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,102.23 : 287,181.83 = 112,608.92 : x
  2. Step 2: Convert to fraction form
    208,102.23/287,181.83 = 112,608.92/x
  3. Step 3: Cross multiply
    208,102.23x = 287,181.83 × 112,608.92
  4. Step 4: Simplify right side
    208,102.23x = 32,339,236,719.40
  5. Step 5: Solve for x
    x = 32,339,236,719.40/208,102.23
  6. Step 6: Final answer
    x = 155,400.72

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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.