Home / 208,116.13-287,200.26-112,622.82

Finding the Fourth Proportional to 208,116.13, 287,200.26 and 112,622.82

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Solution

The fourth proportional to 208,116.13, 287,200.26 and 112,622.82 is: 155,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,116.13 : 287,200.26 = 112,622.82 : x
  2. Step 2: Convert to fraction form
    208,116.13/287,200.26 = 112,622.82/x
  3. Step 3: Cross multiply
    208,116.13x = 287,200.26 × 112,622.82
  4. Step 4: Simplify right side
    208,116.13x = 32,345,303,185.93
  5. Step 5: Solve for x
    x = 32,345,303,185.93/208,116.13
  6. Step 6: Final answer
    x = 155,419.49

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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.