Home / 208,418.90-287,617.10-112,925.57

Finding the Fourth Proportional to 208,418.90, 287,617.10 and 112,925.57

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Solution

The fourth proportional to 208,418.90, 287,617.10 and 112,925.57 is: 155,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,418.90 : 287,617.10 = 112,925.57 : x
  2. Step 2: Convert to fraction form
    208,418.90/287,617.10 = 112,925.57/x
  3. Step 3: Cross multiply
    208,418.90x = 287,617.10 × 112,925.57
  4. Step 4: Simplify right side
    208,418.90x = 32,479,322,956.53
  5. Step 5: Solve for x
    x = 32,479,322,956.53/208,418.90
  6. Step 6: Final answer
    x = 155,836.75

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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.