Home / 208,135.36-287,239.67-117,458.16

Finding the Fourth Proportional to 208,135.36, 287,239.67 and 117,458.16

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Solution

The fourth proportional to 208,135.36, 287,239.67 and 117,458.16 is: 162,099.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,135.36 : 287,239.67 = 117,458.16 : x
  2. Step 2: Convert to fraction form
    208,135.36/287,239.67 = 117,458.16/x
  3. Step 3: Cross multiply
    208,135.36x = 287,239.67 × 117,458.16
  4. Step 4: Simplify right side
    208,135.36x = 33,738,643,117.21
  5. Step 5: Solve for x
    x = 33,738,643,117.21/208,135.36
  6. Step 6: Final answer
    x = 162,099.53

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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.