Home / 208,118.20-287,205.24-112,627.12

Finding the Fourth Proportional to 208,118.20, 287,205.24 and 112,627.12

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Solution

The fourth proportional to 208,118.20, 287,205.24 and 112,627.12 is: 155,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,118.20 : 287,205.24 = 112,627.12 : x
  2. Step 2: Convert to fraction form
    208,118.20/287,205.24 = 112,627.12/x
  3. Step 3: Cross multiply
    208,118.20x = 287,205.24 × 112,627.12
  4. Step 4: Simplify right side
    208,118.20x = 32,347,099,030.11
  5. Step 5: Solve for x
    x = 32,347,099,030.11/208,118.20
  6. Step 6: Final answer
    x = 155,426.58

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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.