Home / 208,225.05-287,350.25-112,731.72

Finding the Fourth Proportional to 208,225.05, 287,350.25 and 112,731.72

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Solution

The fourth proportional to 208,225.05, 287,350.25 and 112,731.72 is: 155,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,225.05 : 287,350.25 = 112,731.72 : x
  2. Step 2: Convert to fraction form
    208,225.05/287,350.25 = 112,731.72/x
  3. Step 3: Cross multiply
    208,225.05x = 287,350.25 × 112,731.72
  4. Step 4: Simplify right side
    208,225.05x = 32,393,487,361.27
  5. Step 5: Solve for x
    x = 32,393,487,361.27/208,225.05
  6. Step 6: Final answer
    x = 155,569.60

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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.