Home / 208,091.32-287,165.10-112,599.70

Finding the Fourth Proportional to 208,091.32, 287,165.10 and 112,599.70

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Solution

The fourth proportional to 208,091.32, 287,165.10 and 112,599.70 is: 155,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,091.32 : 287,165.10 = 112,599.70 : x
  2. Step 2: Convert to fraction form
    208,091.32/287,165.10 = 112,599.70/x
  3. Step 3: Cross multiply
    208,091.32x = 287,165.10 × 112,599.70
  4. Step 4: Simplify right side
    208,091.32x = 32,334,704,110.47
  5. Step 5: Solve for x
    x = 32,334,704,110.47/208,091.32
  6. Step 6: Final answer
    x = 155,387.09

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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.