Home / 208,055.24-287,116.10-112,561.96

Finding the Fourth Proportional to 208,055.24, 287,116.10 and 112,561.96

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Solution

The fourth proportional to 208,055.24, 287,116.10 and 112,561.96 is: 155,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,055.24 : 287,116.10 = 112,561.96 : x
  2. Step 2: Convert to fraction form
    208,055.24/287,116.10 = 112,561.96/x
  3. Step 3: Cross multiply
    208,055.24x = 287,116.10 × 112,561.96
  4. Step 4: Simplify right side
    208,055.24x = 32,318,350,963.56
  5. Step 5: Solve for x
    x = 32,318,350,963.56/208,055.24
  6. Step 6: Final answer
    x = 155,335.43

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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.