Home / 208,154.93-287,254.82-117,514.58

Finding the Fourth Proportional to 208,154.93, 287,254.82 and 117,514.58

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Solution

The fourth proportional to 208,154.93, 287,254.82 and 117,514.58 is: 162,170.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,154.93 : 287,254.82 = 117,514.58 : x
  2. Step 2: Convert to fraction form
    208,154.93/287,254.82 = 117,514.58/x
  3. Step 3: Cross multiply
    208,154.93x = 287,254.82 × 117,514.58
  4. Step 4: Simplify right side
    208,154.93x = 33,756,628,382.79
  5. Step 5: Solve for x
    x = 33,756,628,382.79/208,154.93
  6. Step 6: Final answer
    x = 162,170.69

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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.