Home / 208,165.60-287,191.68-136,585.36

Finding the Fourth Proportional to 208,165.60, 287,191.68 and 136,585.36

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Solution

The fourth proportional to 208,165.60, 287,191.68 and 136,585.36 is: 188,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,165.60 : 287,191.68 = 136,585.36 : x
  2. Step 2: Convert to fraction form
    208,165.60/287,191.68 = 136,585.36/x
  3. Step 3: Cross multiply
    208,165.60x = 287,191.68 × 136,585.36
  4. Step 4: Simplify right side
    208,165.60x = 39,226,179,001.80
  5. Step 5: Solve for x
    x = 39,226,179,001.80/208,165.60
  6. Step 6: Final answer
    x = 188,437.37

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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.