Home / 208,381.20-287,592.12-117,741.60

Finding the Fourth Proportional to 208,381.20, 287,592.12 and 117,741.60

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Solution

The fourth proportional to 208,381.20, 287,592.12 and 117,741.60 is: 162,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,381.20 : 287,592.12 = 117,741.60 : x
  2. Step 2: Convert to fraction form
    208,381.20/287,592.12 = 117,741.60/x
  3. Step 3: Cross multiply
    208,381.20x = 287,592.12 × 117,741.60
  4. Step 4: Simplify right side
    208,381.20x = 33,861,556,356.19
  5. Step 5: Solve for x
    x = 33,861,556,356.19/208,381.20
  6. Step 6: Final answer
    x = 162,498.13

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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.