Home / 208,213.34-287,334.50-112,720.03

Finding the Fourth Proportional to 208,213.34, 287,334.50 and 112,720.03

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Solution

The fourth proportional to 208,213.34, 287,334.50 and 112,720.03 is: 155,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,213.34 : 287,334.50 = 112,720.03 : x
  2. Step 2: Convert to fraction form
    208,213.34/287,334.50 = 112,720.03/x
  3. Step 3: Cross multiply
    208,213.34x = 287,334.50 × 112,720.03
  4. Step 4: Simplify right side
    208,213.34x = 32,388,352,178.10
  5. Step 5: Solve for x
    x = 32,388,352,178.10/208,213.34
  6. Step 6: Final answer
    x = 155,553.69

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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.