Home / 208,427.96-287,629.70-112,935.04

Finding the Fourth Proportional to 208,427.96, 287,629.70 and 112,935.04

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Solution

The fourth proportional to 208,427.96, 287,629.70 and 112,935.04 is: 155,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,427.96 : 287,629.70 = 112,935.04 : x
  2. Step 2: Convert to fraction form
    208,427.96/287,629.70 = 112,935.04/x
  3. Step 3: Cross multiply
    208,427.96x = 287,629.70 × 112,935.04
  4. Step 4: Simplify right side
    208,427.96x = 32,483,471,674.69
  5. Step 5: Solve for x
    x = 32,483,471,674.69/208,427.96
  6. Step 6: Final answer
    x = 155,849.88

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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.