Home / 208,000.08-287,015.42-117,350.75

Finding the Fourth Proportional to 208,000.08, 287,015.42 and 117,350.75

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Solution

The fourth proportional to 208,000.08, 287,015.42 and 117,350.75 is: 161,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,000.08 : 287,015.42 = 117,350.75 : x
  2. Step 2: Convert to fraction form
    208,000.08/287,015.42 = 117,350.75/x
  3. Step 3: Cross multiply
    208,000.08x = 287,015.42 × 117,350.75
  4. Step 4: Simplify right side
    208,000.08x = 33,681,475,809.48
  5. Step 5: Solve for x
    x = 33,681,475,809.48/208,000.08
  6. Step 6: Final answer
    x = 161,930.11

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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.