Home / 208,072.74-287,138.34-112,577.34

Finding the Fourth Proportional to 208,072.74, 287,138.34 and 112,577.34

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Solution

The fourth proportional to 208,072.74, 287,138.34 and 112,577.34 is: 155,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,072.74 : 287,138.34 = 112,577.34 : x
  2. Step 2: Convert to fraction form
    208,072.74/287,138.34 = 112,577.34/x
  3. Step 3: Cross multiply
    208,072.74x = 287,138.34 × 112,577.34
  4. Step 4: Simplify right side
    208,072.74x = 32,325,270,529.22
  5. Step 5: Solve for x
    x = 32,325,270,529.22/208,072.74
  6. Step 6: Final answer
    x = 155,355.62

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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.