Home / 208,101.48-287,180.81-112,608.18

Finding the Fourth Proportional to 208,101.48, 287,180.81 and 112,608.18

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Solution

The fourth proportional to 208,101.48, 287,180.81 and 112,608.18 is: 155,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,101.48 : 287,180.81 = 112,608.18 : x
  2. Step 2: Convert to fraction form
    208,101.48/287,180.81 = 112,608.18/x
  3. Step 3: Cross multiply
    208,101.48x = 287,180.81 × 112,608.18
  4. Step 4: Simplify right side
    208,101.48x = 32,338,907,781.98
  5. Step 5: Solve for x
    x = 32,338,907,781.98/208,101.48
  6. Step 6: Final answer
    x = 155,399.70

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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.