Home / 208,100.24-287,177.88-112,606.90

Finding the Fourth Proportional to 208,100.24, 287,177.88 and 112,606.90

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Solution

The fourth proportional to 208,100.24, 287,177.88 and 112,606.90 is: 155,397.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,100.24 : 287,177.88 = 112,606.90 : x
  2. Step 2: Convert to fraction form
    208,100.24/287,177.88 = 112,606.90/x
  3. Step 3: Cross multiply
    208,100.24x = 287,177.88 × 112,606.90
  4. Step 4: Simplify right side
    208,100.24x = 32,338,210,815.37
  5. Step 5: Solve for x
    x = 32,338,210,815.37/208,100.24
  6. Step 6: Final answer
    x = 155,397.28

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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.