Home / 208,100.22-287,179.07-112,606.92

Finding the Fourth Proportional to 208,100.22, 287,179.07 and 112,606.92

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Solution

The fourth proportional to 208,100.22, 287,179.07 and 112,606.92 is: 155,397.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,100.22 : 287,179.07 = 112,606.92 : x
  2. Step 2: Convert to fraction form
    208,100.22/287,179.07 = 112,606.92/x
  3. Step 3: Cross multiply
    208,100.22x = 287,179.07 × 112,606.92
  4. Step 4: Simplify right side
    208,100.22x = 32,338,350,561.16
  5. Step 5: Solve for x
    x = 32,338,350,561.16/208,100.22
  6. Step 6: Final answer
    x = 155,397.96

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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.